SERFAS UTL-9 Taillight compatio_raw RX is the last saddle

RX is the last saddle you will ever need

Optimal balance of durability and lightweight

The SHIMANO TIAGRA rear derailleur shifts with a consistently smooth

Direct mount ring replaces the existing chainring and spider on 3-bolt GXP cranks

SERFAS UTL-9 Taillight compatio_raw RX is the last saddleFeatures: Super Bright (40 Lumens) *On Daytime Flash 40 Micro LED Panel Large Visible Surface Area Gunmetal Colored Body IPX4 Water Resistant Micro USB Rechargeable Built In Metal Belt Clip Easy Bracket Angle Adjustability Specs: Solid Modes: High (20 Lumens): 3 hrs, Low (10 Lumens): 6 hrs Flash Modes: Daytime Flash (40 Lumens) & High Flash (10 Lumens): 12 hrs Weight: 41 Grams w Bracket Battery: Lithium Polymer