Between the arms

Supports et entretoises BTA

Your bottles belong in the air your body already moves.

Individual BTA Spacers
Part of the Aero BTA system

Bottles between the arms are faster than no bottles at all.

8W

Median saved by the Aero BTA system at 45 km/h, against riding with no bottles. 35 riders on the Ballerup velodrome; up to 14 W at best.

See the Aero BTA system →

Spacers set the height and angle of the bottle on an AeroGain BTA system. Match the spacer angle to your extension angle so the bottle sits horizontal: a 0-degree spacer on 10-degree extensions points the bottle down. Spacers sit on the BTA mount plate or on the Aero Cockpit's own mounting point.

Not sure it fits your bike?

Send us the bike model and a side-on photo of your setup, and we'll tell you what fits.