Bikehard Derailleur Braze on Adaptor 31.8The Bikehard Derailleur Braze on Adaptor allows you to mount your favorite braze on front derailleur to your most prized frame that doesn’t have a built-in braze on mount. This forged alloy adaptor weighs 26g and clamps on to your frame with a 31.8mm diameter seat tube. Available in Black.817616022179
