Dura Ace Di2 RD-R9150 Chain Tools Inflate half as often as

Inflate half as often as classic Michelin tubes

Replacement Grade 300 rim

Race-proven chassis design

6 Stack Height 27 Steerer Tube 1-1/8'' Upper Cup 34mm

part of the adventure is reaching the start of the trail

Dura Ace Di2 RD-R9150 Chain Tools Inflate half as often asStable and fast shifting performance even under load Shimano synchronized shift Shimano shadow RD construction Low profile rear derailleur design, less likely to be damaged in crash Maintains compact and smooth appearance Compatible with up to 30T cogs Attributes Cage SS Max Front Difference 16T Maximum Cog 30T Minimum Cog 11T Primary Color Black RD Capacity 35T RD Spring Type Shadow RD Weight 204g Speed 11