MR Grease Kids 135mm/QR models with Swinger style

135mm/QR models with Swinger style dropouts (Geared)

These cassettes are optimized for off-road and feature PowerGlide II shift technology for smooth and positive shift performance with minimal additional weight

machined brake surface Spokes: 14G Stainless steel Hubs: Alloy hub with bolt-on axle Weight: 32 lbs

DB-LVL-TLM-B1

Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning

MR Grease Kids 135mm/QR models with Swinger style(MR) Micro Resistance Polymer Technology is the ultimate in protection & performance for cup and cone bearings, head set bearings, suspension forks & shocks. With several compound used in aerospace, the new and improvedPRO Xformula is lighter viscosity while maintaining higher protection then other greases. PRO X MR Grease has less than 3% VOCs. PRO X MR Greaseuses polymerization to create a barrier of grease at the contact points which reduces wear,