We’ve all installed the traditional sprocket clamp with the nine bolts and struggle to get it centered. With the BBR Tuning sprocket adapter assembly this is a thing of the past. This adapter clamps directly around your rims hub and center are itself perfectly every time. Installs in just minutes and makes your engine kit install a breeze. Also, when your ready to change your sprocket all you must do is remove three Allen bolts and bolt on your new sprocket. No need to take off the entire adapter.

The BBR Tuning Sprocket and Adapter Assembly is a durable aluminum unit that provides fast and easy installation. Unlike the traditional sprocket clamp assembly, the BBR Tuning Sprocket and Adapter Assembly ensure concentricity with the wheel hub by using the unique two-piece adapter that wraps around the rear wheel hub and enables you to drive the entire wheel instead of applying pressure on the spokes.

SPROCKET SIZE CHART:

Standard Large Adapter:

Specifications:
Fits any rear hub with a diameter of 1.52-1.528".
Used with 12G and 14G spokes.

The following are compatible coaster brakes hubs:

1. High Stop
2. K Stop
3. Falcon
4. Bendix
5. Micargi
6. Shimano CB-110
7. Shimano CB-110E

OCC Chopper Adapter: Specifications:
Fits any rear hub with a diameter of 1.250-1.258".
Great for Schwinn OCC Stingray and Spoiler Chopper Bikes. Modus Adapter: Specifications:
Fits any rear hub with a diameter of 1.180-1.188".
Made specifically for the Walmart Modus hub and other Walmart multispeed cruisers. Nexus Adapter: Specifications:
Made specifically for the Nexus 3 Speed Rear Hub. FWL/5, 6, 7 Speed Adapter:

Specifications:
Fits any rear hub with a diameter of 1.000-1.008"
Made specific for 5,6, and 7 speed FW's

NOTE: The BBR Tuning Sprocket and Adapter Assembly is only compatible with the 415 Heavy Duty Chain. BBR Tuning adapters are only compatible with BBR Tuning 3-Hole sprocket. 9-Hold Sprockets (like those what come with engine kits) will need heavy modification to fit with BBR Tuning adapters.