Profile Design Sonic/Ergo 39A Tri Bars Accessories & Supplements Cassette- SRAM RIVAL XG-1250 10-36T

Cassette- SRAM RIVAL XG-1250 10-36T

and cut from Brazilian lycra

But honestly

Frame-Aluminium Superlite

SCT (Sealant Casing Technology - sidewall protection)

Profile Design Sonic/Ergo 39A Tri Bars Accessories & Supplements Cassette- SRAM RIVAL XG-1250 10-36TThe Sonic bracket offers an extensive fit range, low weight and easy adjustment along with minimal frontal area. Combining this with the Ergo armrest creates an aerobar that will aid most riders in optimizing their position for both speed and comfort. The 39a extensions have a 39 for the grip . The rider can choose whether to hold high for the shrugged position or low for a more open, head up position.