MRP  SB-3 Alloy Chain Guide

With the same boomerang and rollers, but with an alloy guide ring instead of polycarbonate, it’s got more performance per dollar than you can shake a stick at! What are you waiting for?

SPECS/SIZES:

• Single-chainring complete guide system
  
• Fits every hardtail on the market and the majority of suspension frames
  
• ISCG or BB Mount
  
• 36-40T
  
• 104mm BCD