To reduce speed robbing friction the RED rear derailleur uses new AeroGlide pulleys. The AeroGlide pulleys have an optimized tooth profile to work best with SRAM''s PC-1091R chain although other 10-speed chains will work just fine. These pulleys are the key to this derailleurs quietness. To insure that they roll smooth SRAM uses Black-Box Ceramic Bearings in both the upper and lower pulleys.
DETAILS
- Exact Actuation shifting provides fast, accurate shifts
- More clearance with 28t cassettes thanks to longer B-knuckle
- Silent shifting with optimized AeroGlide pulleys
- Ceramic pulley bearings
- New spring-fixed barrel adjuster
- New chain pulley cage adds precise chain management
- Titanium hardware keeps things light
To reduce speed robbing friction the RED rear derailleur uses new AeroGlide pulleys. The AeroGlide pulleys have an optimized tooth profile to work best with SRAM''s PC-1091R chain although other 10-speed chains will work just fine. These pulleys are the key to this derailleurs quietness. To insure that they roll smooth SRAM uses Black-Box Ceramic Bearings in both the upper and lower pulleys.
DETAILS
- Exact Actuation shifting provides fast, accurate shifts
- More clearance with 28t cassettes thanks to longer B-knuckle
- Silent shifting with optimized AeroGlide pulleys
- Ceramic pulley bearings
- New spring-fixed barrel adjuster
- New chain pulley cage adds precise chain management
- Titanium hardware keeps things light
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