BBR's Super Stock Swingarm is burly enough to handle today's pit bike racer. Constructed of heat treated 6061 T6 aluminum with billet drop-outs and shock mount. It is lengthened 2 1/4". Includes stainless steel bushings and needle bearings. Accepts 12" rear wheel. Includes Chain Guide.
 

• Forged 6061 aluminum side spars
• TIG welded 
• Uses BBR CRF/XR50 chain guide on all models
• Adds 2 1/4" over stock length
• Needle bearing pivots
• Fits 10" or 12" rear wheel
• Includes chain guide

Fitment- CRF50 00-Present 

Note: You will need a longer chain. All Stock Comp Signature swingarms use the CRF50 chain guide