Tools

This Wheels Mfg. Double End Bottom Bracket wrench fits 16-notch bearing cups with an outside diameter of 44mm as well as 16-notch bearing cups with an outside diameter of 48.5mm. - Machined aluminum - Anodized red. - Compatible with all current Wheels Mfg bottom brackets with notched cups

High-quality L-key set with color-coded, convenient plastic sleeve. This ensures that the tool is quickly to hand and the ergonomic and pleasant handle is easy on the hands even at low temperatures. The wear-resistant clip material ensures secure storage of the L-keys as well as simple removal. The Hex-Plus profile offers a greater contact surface in the head of the screw. The notching effect is therefore reduced to a minimum and damage to the screw head more or less eliminated. The ballpoint on the long arm allows dependable working even in difficult installation situations. The BlackLaser surface treatment provides outstanding surface protection, even against corrosion, and a long service life. Laser-engraved and thereby wear-resistant size markings on the L-keys for rapid accessing. - Hex-Plus allows socket head screws to live longer - Hexagonal ballpoint on the long arm - With Take-it-easy tool finder: color coding by size - Color coded, easy-to-grip plastic sleeve, even at low temperatures

The Vittoria Road Tubeless Tool-Kit will make the installation and removal of your tubeless tires easy and quick. Each kit contains one pair of pliers and clips per package. The patented plier design provides a gentle yet secure grip on the tire, which is needed when removing the tire bead from the rim. This creates space for the included clips to be inserted between the tire and rim. Additionally, the handles of the pliers are designed to be used as tire levers, during mounting and dismounting, and are designed to prevent damage to the rim and tire. The Vittoria Road Tubeless Tool-Kit is necessary for the Air-Liner Road removal from your wheel.

Perfect for trailside repairs and for your home shop, Topeak's Universal Chain Tool is compatible with all chains and removes and installs pins with ease. Plus, there's even a compartment to hold spare pins, an integrated chain pin breaker and a removable chain hook to hold your chain while you work.

A mineral oil bleed and service kit for all Tektro and TRP hydraulic disc brakes Includes: 25ml syringe, plastic tube x3, hose retainer ×2, compression ferrules ×2, brass inserts with O-ring ×2, inlet & outlet valve

A mineral oil bleed and service kit for all Tektro and TRP hydraulic disc brakes Includes: 25ml syringe, plastic tube x3, hose retainer ×2, compression ferrules ×2, brass inserts with O-ring ×2, inlet & outlet valve

Special tools for building Surly Fat Bike wheels. - 56mm-wide spacer aids in dishing and truing Moonlander offset wheels - 35mm-wide spacer aids in dishing and truing Pugsley offset wheels

- Fixed gear lockring wrench for removal of fixed gear cogs - Also works for BB and headset lockrings

• For adding or replacing cage & rack mounts • Inserts are 10 to a bag • M5 x 12mm Alloy Insert

- Compact tool for removing valve cores from Schrader valves, Presta valves, and valve extenders - Easily fits in any bag or jersey pocket

Stan's 2oz Tire Sealant Injector measures the desired amount of sealant then attaches to your valve stem for easy, no-mess application. And, it works on Presta and Schrader valves!

- 5 DART plugs for use with the Stan's NoTubes DART tool

Stan's Dual Action Repair for Tubeless (DART) fixes damaged tires faster, easier, and better than existing plug tools. While traditional tire plugs try to wedge rubber strips into a puncture, the DART creates a chemical reaction with your Stan's sealant to quickly form a permanent airtight bond. The DART's plastic tip is barbed to anchor firmly in place and stay put during even the most aggressive riding while being safer for rims, rim tape, and your hands. The material of the DART is also more flexible, and its laser-cut shape is optimized to contour to the shape of different punctures, maximizing surface area to increase the sealing reaction. Because the DART anchors to your tire and creates an instant bond with your sealant, it also won't pull out while riding the way a conventional plug can. One of the best features of the DART's design is that it doesn't require trimming once inserted, and excess material won't get in the way of your ride. DARTs can't be felt while riding, even on road tires, and they wear smooth naturally. - Repairs large punctures and slices - Reacts with Stan's sealant to form an instant, airtight seal - Barbed plastic tip anchors into tire and will not pull out when riding - Flexible material and laser-cut shape conforms to puncture and bonds with sealant - Wears off clean, no trimming needed, and can not be felt while riding, even on road tires - Lightweight, compact tool fits the shape of your hand for more precise use and includes built-in valve core remover - Includes two pre-loaded DARTs for sealing multiple and larger punctures - Clear caps keep DARTs clean and unthread quickly for fast deployment - Simple and easy to refill

This Zee Cage II was designed with an integrated EMT Cage Mount MTB Tool that has all of the trailside necessities required to get you out of a jam on your ride. For the cage itself, you'll find it to be respectably lightweight, and to have incredible holding power for when the trails get rough. For easy bottle access, we also gave it a unique side-loading design that allows you take pulls from the right or left-hand side depending on placement. - SWAT design allows for storage and tool integration. - Reinforced composite material improves durability without adding weight. - Includes EMT Cage Mount MTB Tool with 3, 4, 5, 6, 8mm, T25 Torx, and #1 flathead screwdriver. - Right-hand loading on the down tube—left-hand loading on the seat tube. - Sleek, minimalist design with razor-sharp graphics.

The best of both worlds are now combined into one. Three tire levers and a CO2 inflator head round out this combo tool. Features: - 1 Tire Lever With Built In CO2 Inflater - 2 Tire Levers With Built In Spoke Hooks - Presta & Scharder Valve Compatible Specs: - Number of Tools: 2 - Weight: 38 Grams - CO2 Lever Length: 5 1/4? - Lever Length: 4 1/2?

The ultimate starter combo kit! - Medium-sized saddle bag - Ballistic nylon bottle cage - 15 function super tool with CO2 inflator - Tire levers - 8-piece patch kit - 2 threaded 16g CO2 cartridges

A CO2 inflator and mini tool in one, Serfas's ST-13i features 1.5, 2, 3, 4, 5, 6 and 8mm Allen keys. It also has Phillips and flathead screwdrivers, T25 and T30 Torx wrenches, and CO2 inflator head (cartridges sold separately). This compact, metal mini tool nearly does it all.

SRAM's Disc Brake Bleed Kit has everything you need to ensure your brakes are dialed. The kit is compatible with SRAM X0, XX, Guide, and HydroR brakes. It is not compatible with RockShox' fork bleed kit. Includes the following: • 2 syringes/fittings • bleed blocks • Torx tool • Crow's foot • Bleeding Edge Fitting • DOT 5.1 hydraulic fluid

Handy and affordable, this tool makes it easy to get a clean cut every time. - Securely holds hose while cutting - Replaceable blade

The SRAM Pro Disc Brake Bleed Kit is designed for servicing SRAM disc brakes systems. - Kit includes 2 syringes, fittings, bleed blocks, Torx tool, crowfoot, Bleeding Edge Fitting, and DOT5.1 hydraulic fluid - For use with SRAM X0/ XX/ Guide/Level/Code/HydroR/G2 disc brakes - Compatible with DB-G2-R-A1, DB-G2-R-A2, DB-G2-RE-A2, DB-G2-RS-A1, DB-G2-RS-A2, DB-G2-RSC-A1, DB-G2-RSC-A2, DB-G2-ULT-A1, DB-G2-ULT-A2, DB-GDE-R-A1, DB-GDE-R-B1, DB-GDE-RE-A1, DB-GDE-RS-A1, DB-GDE-RS-B1, DB-GDE-RSC-A1, DB-GDE-RSC-B1, DB-GDE-T-A1, DB-GDE-ULT-A1, DB-LVL-A1, DB-LVL-T-A1, DB-LVL-TL-A1, DB-LVL-TLM-A1, DB-LVL-TLM-B1, DB-LVL-ULT-A1, DB-LVL-ULT-B1, DB-X0-B1, DB-XX-A2

Service kits include dust seals, foam rings, oil seals, air and damper o-rings needed for basic service.

RockShox, 11.4115.129.010, Service Kit, Monarch Plus (does not include air can seals)

200 hour/1 year Service Kit (includes dust seals, foam rings, o-ring seals) - Recon RL/TK A1 (2018+)

RockShox Volume Reducer Kits

The Problem Solvers Holy Driver is a durable chromoly tool used for holding and turning spoke nipples when building wheels and fixing them. You can use it manually, spinning it in your fingers to quickly fasten nipples. And, you can use it in a power drill for even faster wheel work. The tool tip fits into the slot in the top of the nipple and holds securely. Plus, the length is adjustable so it's great for use on standard and deep-profile rims.

- Xtreme chain lube is formulated for long-distance and extreme off-road conditions - MFR bonds to metal surfaces and resists build-Up and tackiness, in addition to shedding water

- Holds socket tool to BB axle to eliminate slippage during removal and installation. New spring preload allows increased flexibility and rotation during use. - New design works with square taper and splined axles with M8, M12, or M15 internal spindle thread. - Made from heat-treated tool steel for the ultimate in strength and lasting performance. - Use with Pedro's Splined Bottom Bracket Socket. Compatible with Pedro's Pro Socket Handle. If you have ever battled with an over-tightened Shimano and ISIS Drive splined bottom bracket cup, you know why Pedro's created the BB Socket Holder. Though these types of bottom brackets proved themselves as the standard for many years and continue to be found on many bikes, the tendency for their shallow splines to slip during removal or installation has resulted in more than a few expletives, high frustration levels, and worst of all, injuries. The Pedro's BB Socket Holder II provides a simple, shop-quality tool that solves this problem. The new design works on bottom brackets spindles with M8, M12, or M15 threads and adds spring preload for increased flexibility and rotation during use. Backed by Pedro's lifetime warranty.

- Fits Shimano, Sun Race, Sachs, and other 12 spline, 22.7mm diameter 5–10 speed freewheels and all Campagnolo cassette lockrings and Record, Chorus, Centaur, and Athena bottom brackets. - Professional quality and precision sized for the perfect fit. - Designed to work with Pedro's snap-channel Pro Socket Handle, a 24mm socket or wrench, or in a bench vise. Pedro's socket tools provide a professional quality, precision fit tools required to properly install, remove, and adjust modern drivetrain components. Pedro's designed each socket tool to fit perfectly, protecting the component and ensuring simple and safe usage for the mechanic.

The hex wrench is the most common tool needed for the modern bicycle. Choosing the right set can make the difference between good day and a bad day working on bikes. Pedro's L Hex Wrench Set is up to the challenge. They made these wrenches from heat-treated SNCM-V alloy steel to ensure superior strength and long-lasting performance. Pedro's hex wrenches also feature extra length and a round-style end for better leverage and easy access and handling of hard-to-reach bolts. The set includes all the sizes you need in a convenient holder. - Made from heat-treated SNCM-V alloy steel to ensure long-lasting performance - Extra length provides great leverage and access to hard-to-reach bolts - Includes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, & 10mm sizes in convenient holder

- Made from heat-treated SNCM-V alloy steel to ensure lasting performance. - Extra length provides great leverage and access to hard-to-reach bolts. - Includes: T10, T15, T20, T25, T27, T30, & T40 sizes and convenient holder. The torx style fastener is quickly becoming standard fare on the modern bicycle. Having the right torx wrenches in the right sizes is essential for the modern mechanic. The Pedro's L Torx Wrench Set is up to the challenge. We made these wrenches from heat-treated SNCM-V alloy steel to ensure superior strength and lasting performance. Pedro's torx wrenches also feature extra length for better leverage and easy access and handling of hard-to-reach bolts. The set includes all the sizes you need, in convenient holder, all backed by Pedro's lifetime warranty.

These quick-link pliers make fast work of pesky or stubborn chain master links. The laser-cut, heat-treated jaws feature a dual-function design, allowing both installation and removal of master links. Cushioned grips provide comfort and control. -Laser-cut, heat-treated, dual-side jaws both install and remove master links -Cushioned grips provide comfort and control

Any fastener with a name like star fangled nut was destined to cause headaches. Most mechanics have battled with troublesome star nuts and know having the right tool makes a world of difference. Pedro's Star Nut Setter was designed to make star nut installation quick and easy. Compatible with 1" and 1 1/8" steerer tubes, the Pedro's Star Nut Setter features a guide that surrounds the steerer, providing perfect alignment and perfect depth every time. The compact size is perfect for the tool box and the tool steel construction ensures long-lasting performance.

The tire lever, though seemingly one of the simplest and most basic of cycling tools, is one commonly used by almost every cyclist, and unfortunately, one often responsible for unnecessary frustration. Really, what is more fun than flatting far away from home, being thrilled you lugged that spare tube and pump, and then having your tire levers snap in two? Pedro's award-winning, universally loved tire levers feature molded box construction and a proprietary plastic composite blend that makes them the strongest levers available. The unique chisel tip shape easily inserts beneath the tire bead and the slightly thicker shape keeps the lever securely in place. Additionally, the bold shape of the lever and helpful dual spoke hooks makes removal of even the tightest tires a simple task. - Award-winning and universally loved - Molded box construction and proprietary plastic blend makes these the strongest levers available - Chisel tip shape is easy to insert beneath the bead and the slightly thicker shape keeps the tire lever from slipping - Bold shape makes it easy to remove the tightest of tires without bending or breaking

- Updated jaws work on track cogs, cog & bb lockrings, e-bike chainrings, and cassettes. - Updated adjustment knob features gear size indication for quick reference of the current tool setting. - Adjustable plier design securely locks in place ensuring positive engagement and preventing slippage. - Fits 9-23 tooth gear sizes and 40-46mm OD lockrings with opposing notches. Compatible with all multi-gear cassettes and all standard width cogs and e-bike chainrings. Visit pedros.com/chainfit for the latest compatibility information. The Vise Whip is simply a better solution for holding your cassette during removal and now also works on track cogs, cog & bb lockrings, and e-bike chainrings. This innovative tool was developed by Pedro's in close collaboration with legendary frame builder and cycling technical author Lennard Zinn. The Vise Whip is beautifully simple to use. Once you try it, you'll never go back to a chain whip again.

Y-Style Hex Wrench - Perfect for common hex hardware found on modern bicycles and components. - New improved ergonomic Y-style handle design. - Features refined body shape, quick-spin bit sleeves, longer bits, and bit-size indication. - Designed to stand up to the harsh conditions of professional use. - Pedro's popular Y-Wrenches feature heat-treated tool steel construction and durable plastic body designed to stand up to the harsh conditions of professional use. - The new improved ergonomic design features a refined body shape for improved fit and comfort, new quick-spin bit sleeves for speed and versatility, and bit-size indication for quick tool identification. - Backed by Pedro's lifetime warranty.

Park's 11-Speed Compatible Chainwhip/Sprocket Remover is for removing cassettes and freewheels, and getting cogs apart, too. It has a long plastic-covered handle for excellent leverage and the chain is attached with hardened pins for durability. The chain fits on everything from 11- to 5-speed cassettes and freewheels.

Park combines the three most used bolt sizes into one convenient wrench. The 3-Way Sprocket Wrench sports 8, 9 and 10mm sockets made from forged chrome-vanadium steel in Park's classic Y-shape that offers plenty of leverage and a comfortable grip.

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-1 FEATURES - 4mm, 5mm, and 6mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-3 FEATURES - 2mm, 2.5mm, and 3mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

Park's Bottom Bracket Wrench has 2 ends to fit slotted bottom bracket adjusting cups and cups with raised 16mm wrench flats common on older English and less-expensive bicycles. Please ask if you have any questions whether this wrench is right for your repair.

Park's AV-1 Axle Vise makes repairing and overhauling hubs easier than ever. It prevents your axle from spinning while work is done on the hub and it has two different size receptacles so it will work with both front and rear axles.

Precision CNC machined dual-sided aluminum tool for the installation and removal of 12- and 16-notch external bearing bottom brackets. Anodized for easy identification and featuring a ratchet/torque wrench compatible 3/8" drive. - Fits Enduro T47: 16-notch 52.2mm OD cup - Fits Enduro PF30: 16-notch 52.2mm OD cup - Fits Chris King ThreadFit T47: 12-notch 50.4mm OD cup - Fits Chris King ThreadFit 30: 12-notch 50.4mm OD cup

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Enduro T47 & PF30 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. Fits 16-notch bottom bracket tool fittings with a major diameter of 52-54 mm and a minor diameter of 48.8 mm, including: - CeramicSpeed T47/86 - Enduro T47 (30mm and DUB spindles) - Enduro BB30/30a TorqTite (30mm and DUB spindles) - Kogel T47 - SRAM T47 DUB - White Industries T47 - White Industries PF30 Thread-Together

Precision CNC machined aluminum tool for the installation and removal of 16-notch external bearing bottom brackets. Featuring updated tooth profiles to optimize the fit between the tool and high performance BB parts. Anodized and laser engraved for easy identification and featuring a ratchet/torque wrench compatible 3/8-inch drive. - 16-notch 39mm OD cups - Fits: Shimano XTR BB93, Dura-Ace BB9000, Token - Added depth to fit Shimano STEPS square drive motor

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano XTR BB93, Dura-Ace BB9000, and Token bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-49.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 39-40 mm and a minor diameter (inside of notches) of 37.6 mm, including: - Shimano XTR BB93 - Shimano Dura-Ace BB9000 - Token Also fits chainring lockrings on Shimano STEPS square spindle e-bike systems including: - E6000 - E6002 - E6050 - Replacement for Shimano TL-FC38 tool - 3/8" drive fitting

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

A clean bike is a happy bike! Park Tool's Bike Cleaning Brush Kit is a four-piece brush set designed specifically to clean bicycles. Ergonomically designed and featuring dual-density, sure-grip handles, the BCB-4.2 kit includes: • 1 GSC-1 Gear Clean Brush • 1 Tapered Detail Brush • 1 Frame Cleaning Sponge/Bristle Brush • 1 Soft Bristle Soaping Brush

Precision CNC machined dual-sided aluminum tool for the installation and removal of 12- and 36-notch external bearing bottom brackets. Anodized for easy identification and featuring a ratchet/torque wrench compatible 3/8-inch drive. Fits Praxis M30 and M35 - M30: 12-notch 48mm OD cup - M35: 36-notch 51.7mm OD cup

Park's BBT-32 is the perfect solution for the home mechanic installing and removing Shimano and ISIS Drive splined 20-tooth bottom bracket cups. Made from investment-cast steel, the BBT-32 utilizes a flat tooth profile to ensure maximum engagement with the bottom bracket cup and features 32mm wrench flats.

Park's BBT-18 is a heavy duty, investment cast tool for installing and removing all Shimano, ISIS Drive, and ISIS Overdrive 8-notch bottom bracket cups.

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano Ultegra BBR60 and Deore XT MT-800 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-59.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. - Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 41–42 mm and a minor diameter (inside of notches) of 39 mm, including: - Shimano Ultegra BBR60 - Shimano Deore XT MT-800 -3/8" drive fitting

A worn bicycle chain can cause poor shifting and expensive drivetrain damage. The Park Tool CC-4.2 Chain Checker is a drop-in gauge that measures chain wear accurately. It contacts the chain in three places, eliminating guesswork. Compatible with 5 to 13-speed and single-speed chains, it indicates wear at 0.5%, 0.75%, and 1.0%, matching manufacturer replacement recommendations. - Measures bicycle chain wear accurately, preventing expensive drivetrain damage - Laser-cut design contacts the chain at three points, providing quick and precise wear measurement - Compatible with 5 to 13-speed derailleur chains and single-speed chains - Indicates chain wear at 0.5%, 0.75%, and 1.0%, aligning with manufacturer recommendations for replacement

A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts. The Chain Gang contains everything needed to quickly and easily clean the chain, freewheel cogs, and chainrings. The Chain Gang includes: - CM-5.3 Cyclone Chain Scrubber - GSC-1 GearClean Brush - 8 oz. bottle of Bio ChainBrite The CG-2.4 works on nearly any bike, including multi-speed, single-speed, and e-bikes.

Cleans bicycle chain quickly, easily, and effectively — without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two-step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. - Works with all multi-speed bikes (5, 6, 7, 8, 9, 10, 11, and 12-speed) as well as some single-speed models and e-bikes - Strong magnet at the bottom of the fluid reservoir holds metallic particles scrubbed from the chain - Special wicking sponge draws solvent from the chain as it exits, minimizing drips and mess - Sturdy handle makes the Cyclone easy to use and control - Holds 2 fluid ounces (59ml) of solvent

Heat-treated alloy tool steel, one inch base fits wrench or bench vise. Thin-wall construction allows use without removal of cones and locknuts. The FR-5 has 12 splines that are approximately 23.4mm across. - Fits Shimano, SRAM, Sunrace, Suntour, Chris King and other cassette lockrings - Fits the SRAM XX1 11-speed cassettes - Also fits Shimano disc brake lockrings - Always use a quick-release skewer to hold the tool in place and snug to cogs when loosening; for solid axles, use the axle nut

The Park Tool FR-5.2GT is designed specifically for use when removing and installing cassette lockrings from thru axle hubs. -Utilizes a 12mm guide pin to stabilize the tool during use - Fits 12-spline cassette lockrings from Shimano, SRAM (including 1x), SunRace, SunTour, Chris King and others (23.5mm diameter) - Fits some Shimano and similar disc brake rotor lockrings

Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. The FR-5.2G has 12 splines that are approximately 23.4mm across. - Fits Shimano, SRAM, SunRace, SunTour, Chris King and other cassette lockrings - Fits the SRAM XX1 11-speed cassettes - Also Fits Shimano disc brake lockrings - Guide pin stabilizes tool

To prevent poor shifting and uneven drivetrain wear, most manufacturers recommend chain replacement at or before 1% stretch. Now you can quickly and accurately determine the wear and stretch of any chain with Park's Chain Checker. Simply insert the Chain Checker’s pins into 2 links, press the swingarm gauge tight, and then check the gauge window for an accurate reading!

A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts. The Chain Gang contains everything needed to quickly and easily clean the chain, freewheel cogs, and chainrings.

Park's Chainring Nut Wrench makes chainring bolt installation and removal easy. It securely holds the slotted nut to prevent spinning when tightening or loosening the bolt. And, it's double-ended to fit most slotted-type nuts, including Campagnolo chainring bolt nuts.