Prototipo Works - 316 Stainless Steel Presta to Schrader Adaptor (Stealth Black) By Computer_Wahoo 5cm Weight 4

5cm Weight 4

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Some derailleurs even have integrated chain catchers

and finish

What saddle rails is it compatible with

Prototipo Works - 316 Stainless Steel Presta to Schrader Adaptor (Stealth Black) By Computer_Wahoo 5cm Weight 4Description: Prototipo Works 316 Stainless Steel Presta to Schrader Valve Adaptor. Presta (French Valve) to Schrader (Common Car Valve). Makes it possible to use a range of automotive pneumatic pumps and service station air facilities to inflate presta valve equipped tubes. A great handy addition to any saddle bag, jersey pocket, repair kit, toolbox or workshop. Generous knurling provides ample grip in cold conditions with or without cycling gloves.