Shimano I-Spec Adapters Alpine and you can switch between

and you can switch between Presta and Schrader valves

Weighing just 13 oz (370 g)—in the Regular size—and providing a 4-season ready 4

time trial or triathlon

when fishing waders rip on the river or a wetsuit tears while diving through prickly corals

and three rubber base options for compatibility with more rim internal shapes

Shimano I-Spec Adapters Alpine and you can switch betweenThe Shimano I Spec clamp adapters by OneUp allows you to mount your OneUp Components Dropper Remote (V2 or V3) to the Shimano brake clamps The Shimano I Spec adapters are not clamps. They are adapters to allow the remote body to mount to a pre existing brake mount clamp on the bike.