Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. - Made from Aluminum, anodized or polished finish, without logos - 1-1/8" Diameter - S.H.I.S. Stem Clamp Diameter: 28.6mm

Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. - Made from Aluminum, anodized or polished finish, without logos - S.H.I.S. Stem Clamp Diameter: 25.4mm

Problem Solvers' 11-speed Freehub Spacer converts your 11-speed freehub body to accept a 10-speed casssette. Use this spacer if you are running a 10-speed drivetrain on a new set of wheels with a 11-speed freehub body. The spacer is 1.85mmm thick.

The Problem Solvers BB30/Press-Fit 30 Adapter Kit consists of DuPont Delrin (a tough, light type of plastic) pieces that allow you to use your external bottom bracket-style crankarms (24mm spindles, such as a Shimano Hollowtech II crank) with newer BB30 and Press-Fit 30 bottom brackets. Please contact us if you have any questions about compatibility.

Single sided, bottom bracket mounted cable guide, with integrated cable housing stop. - Intended to fit 40mm diameter bottom bracket shells - Includes M5 mounting bolt - Direct replacement for: Salsa Vaya, Salsa Warbird (Alloy), Salsa Journeyman, All-City Cosmic Stallion, - All-City Gorilla Monsoon, All-City Macho King, All-City Space Horse Disc

The Problem Solvers Brake Mounting Nut is for front caliper brakes that take recessed fixing nuts. This chrome-plated steel Allen nut comes in 2 long lengths so that it will grip enough threads to tightly fasten the brake on even the thickest of fork crowns.

The Problem Solvers Braze-On Front Derailleur Adapter simply clamps onto your frame's seat tube and provides a secure place to bolt on your braze-on front derailleur (sold separately). This fine adapter is made of light, durable aluminum and includes a stainless-steel bolt.

The Problem Solvers Cassette Spacers are made of light and durable anodized aluminum and come in different thicknesses for correctly spacing various brand and model cassette cogs. Measure and match your spacers to choose the right width.

The Problem Solvers Center Lock Rotor Adapters are CNC-machined aluminum adapters that allow the use of 6-bolt rotors on Shimano's Center Lock hubs.

Sold individually or as part of Problem Solvers' 6-bolt adapter assembly, this lock ring is meant for use with Shimano Center Lock compatible hubs. - External splines; compatible with external bottom bracket tools - For use with 12 – 20mm thru-axles - Aluminum construction

The Problem Solvers Center Lock Adapter Kit allows riders to use 6-bolt rotors on Shimano Center Lock compatible hubs. - Not intended to be used with rotors over 180mm in diameter - Made of extruded, CNC-machined, and broached AL-6061-T6 - Designed for use with Center Lock hubs and 6-bolt disc brake rotors

The Problem Solvers Clamp-On Water Bottle Cage Mount makes it easy to carry a bottle on your handlebars so you can have even more refreshment on rides. It also comes in useful on frames without room for bottles, like smaller frames and some kid’s bikes.

The Problem Solvers Compression Plug for 1 1/8-inch Forks is for threadless aluminum and carbon forks. It fits tightly inside the fork and provides easy headset adjustment and a nice, clean look.

The Problem Solvers Direct Mount Adapter gives you a place to install direct-mount Shimano and SRAM derailleurs. It was initially developed for standard mountain bike frames with 68/73mm wide bottom bracket shells, and is equally suited to fat/snow bikes, where their 100mm wide bottom brackets make front derailleur applications a little difficult. The adapter is made of light and durable 6061 aluminum.

The Problem Solvers Double Chainring Bolts include 5 chainring bolts and nuts that are 8mm wide. This is the right size for most double-chainring setups. These chainring bolts are made of either aluminum, stainless steel, or chromoly.

The Problem Solvers Double Chainring Bolts include 5 chainring bolts and nuts that are 10mm wide. This is the right size for most double-chainring setups with a bashguard. These chainring bolts are made of aluminum and feature dual-hex heads for easy, secure installation.

The Problem Solvers Double Chainring Bolts include 5 chainring bolts and nuts that are 8mm wide. This is the right size for most double-chainring setups. These chainring bolts are made of aluminum and feature dual-hex heads for easy, secure installation.

Downtube cable adjusters from Problem Solvers. - Braze-on downtube adjusters for road shifters - Contoured to fit traditional sized steel downtubes - Black Finish

The Problem Solvers GXP Spindle Adapter Kit lets you adapt a GXP crankset to a BB30 or Press-Fit 30 bottom bracket. It's used with the Problem Solvers BB30/Press-Fit 30 Adapter Kit, which is sold separately.

The Problem Solvers Handlebar Clamp Shim allows you to fit almost any handlebars in almost any stem. It's machined of light and durable aluminum and grooved on the inside to hold tightly.

Problem Solvers has a couple different options for adding cable housing or brake hose guides to your bike. Choose from the adhesive stick-on option or the guide that mounts to existing housing stops.

The Problem Solvers Inner Chainring Bolts include 5 of the special threaded chainring bolts that fit into the chainring nuts on your crankset to hold the chainrings in place (chainring nuts sold separately). This type is 12.5mm long and made of durable chromoly.

I-SpecBar Clamps are a one-piece hinged clamp adapter that allows users to mount I-Spec compatible shifters or dropper levers onto the handlebar, without requiring an I-Spec brake lever. - Sold individually, the clamp can be mounted to the right or left side - Hinged clamp for easy installation without removing other components - Black Anodized, CNC AL-6061 Aluminum - Compatible only with Shimano I-Spec II compatible shifters or dropper post remotes - 23g

Problem Solvers Universal Derailleur Hangers The Universal Hanger replaces the drive-side nut on the quick-release skewer so you can get the majority of your gear range back. A vital tool to bring along when touring. - Emergency, on-the-trail derailleur hanger replacement - Enables you to keep riding and use the majority of your gear range - Compatible with most rear-facing-horizontal and vertical dropouts - Replaces the drive-side nut on 5mm quick-release skewers - Anti-rotation feature ensures the derailleur stays in place during use - CNC-machined AL-6061 with steel hardware

Problem Solvers' Rear Cable Hanger with Angle Adjuster allows you to adjust your rear brake cable to perfectly work with your frame and brake to create a seamless line for maximum performance.

Notched binder bolts for frames with integrated seat collars. Details: CroMoly steel bolts Three lengths available: 16, 19 and 21mm 8mm diameter

The Problem Solvers Seatpost Shim is what you need when your seatpost is a little too small-diameter to fit tightly into your frame. It's made of light, durable aluminum and has a lip on the top so it won't slide down inside the frame during installation.

Switching frames doesn’t mean you have to switch posts! Use your old posts without worry with Problem Solver's wide variety of seatpost shims. -100mm long -3mm lip -Alloy Problem Solvers Seatpost Shims are not intended for use with carbon seatposts

The Problem Solvers Sheldon Fender Nuts are an awesome way to avoid the brake-centering problems caused by mounting fenders directly to your brakes. They're named after the inventor and bike guru, Sheldon Brown. These special Sheldon nuts take the place of your existing brake nuts. They have threaded extensions for standard 6mm bolts (sold separately) providing a secure mounting place for your fenders that won't mess with your brake adjustment. They make it easier/faster to install and remove fenders, too, so they're great for commuting bicycles.

The Problem Solvers Shifter Boss Covers are perfect for covering up the down-tube shifter bosses when you're converting a frame with them to a singlespeed/fixie setup. They're made of light, durable aluminum and sport a nice polished finish.