Rennen Ultralite Spider Color:Black Box One Stem Lock

Box One Stem Lock

The slim has padding on slim size base with hollow bolt

REAR HUB: Wise alloy

the Speedbooster features LSG+ (Low Specific Gravity) compound technology for lightweight grip and a hardness rating of 66 on Vee's 100 point scale

Rennen Ultralite Spider Color:Black Box One Stem LockRennen Ultralite Spider features the same self extraction feature that is also available on the popular Raycelight gears, helping to protect you expensive cranks from damage during change outs. Like all of Rennen's components, the Rennen Ultralite Spider are constructed from 7075 T6 Aluminum for superior durability as well as lighter weights compared to a majority of it's counterparts in the market today. Compatible with most square taper crank