SBK501 P Sprocket Brake Kit, left side, 50 tooth, polished caliper

SBK501 B Sprocket Brake Kit, left side, 50 tooth, black anodized caliper

SBK501 C Sprocket Brake Kit, left side, 50 tooth, chrome caliper

SBK481 P Sprocket Brake Kit, left side, 48 tooth, polished caliper

SBK481 B Sprocket Brake Kit, left side, 48 tooth, black anodized caliper

SBK481 C Sprocket Brake Kit, left side, 48 tooth, chrome caliper

SBK502 P Sprocket Brake Kit, right side, 50 tooth, polished caliper

SBK502 B Sprocket Brake Kit, right side, 50 tooth, black anodized caliper

SBK502 C Sprocket Brake Kit, right side, 50 tooth, chrome caliper

If you have a 1" axle please add a '1' after the part number. All our sprocket/rotors are supplied with a standard 1.98" center hole. Some wheels for 1" axles have a larger indexing lip on the hub, but there is no 'standard' size. We will bore the sprocket/rotor center hole to your requested size for an additional $50. We can bore the center hole as large as 2.5".

The Sprocket Brake Kit offers braking performance equivalent to an after-market two-piston caliper with a 10" rotor, as that is exactly what it is. The pictures in the catalog demonstrate the positioning of the caliper when installed. Although designed for use on rigid and Softail applications, some of our customers have used them successfully with traditional swing-arms. If you are considering this, then the following information may help. Dimension from outer face of sprocket to outer face of caliper is 1.2". Caliper measures 2.9" across at it's widest point, 3.6" at it's longest point, and is 2.55" from front to back. We are frequently asked whether oil from the chain causes a problem. Firstly, with modern 'O'-ring chains you cannot lube the joints as they are sealed. You need simply to keep the side-plates clean. Tsubaki even says you can run them dry! Fly-off from the chain is in an outward direction, so contamination only occurs during lubing, if you do lube your chain. If it does, wipe it off. Finally, if some oil makes it onto the braking surface it burns off immediately. In reality, therefore, the contamination issue does not cause a problem. The Europeans have been using Sprocket Brakes for years. We use RK heavy duty nickel-plated 'O'ring chains on our bikes; great looks, low maintenance.
Our Sprocket Brake Kit uses readily available brake pads and seals.

FER Ferodo replacement brake pads

EBC EBC replacement brake pads

SBRK Rebuild kit with EBC pads

SR50 Replacement Sprocket/Rotor, 50 tooth

SR48 Replacement Sprocket/Rotor, 48 tooth

EBR8.5/10/11.5 Stainless steel brake rotor (specify diameter)

Rotors are machined from high-quality 410 stainless steel, hardened, ground flat and parallel, lapped then polished. All our rotors have a 1.3" wide braking surface, and are 0.225" thick. These dimensions suit the vast majority of after-market brake calipers available.

EFCP 4-piston front caliper, polished, left

EFCP-R 4-piston front caliper, polished, right

EFCB 4-piston front caliper, black anodized, left

EFCC 4-piston front caliper, chrome, left

These calipers are direct bolt-on for fork sliders with evolution-type mounting points (HD 86-99). These calipers are also available for Twin-Cam (2000-up) application. Please specify when ordering if you have 2000-up fork sliders.