These are built around a 6061-T6 alloy internal structure and feature a male bolt design

Made from a Superlight natural Butyl Rubber

and decreased material to keep the weight down

For the traditionalists out there

they're an affordable upgrade/replacement for your worn out old cranks

S&M Enduro V2 Stem Size:40mm These are built around aThe Enduro V2 is a strong, clean looking top load stem with 34mm rise and a fork top cap counter bore. Features include a thick single cap and less external machining than its predecessor. Internal machining to keep the weight down and two engraved Sharpie Shield logos round out the new, taller version of this popular dirt and street stem. ###section### Product Specs TYPE: Top Load REACH: 40 55mm RISE: 34mm CLAMPING DIAMETER: 22. 2mm WEIGHT: 331. 7g