Description and materials - Trialtech 2-bolt booster made from high quality CNC 6061 T6 aluminium. - Features the same design as the successful Trialtech Carbon booster. - Lightened at the front and even more at the back, with a very low weight and nice resistance. - Wide profile to protect cross-over pipes on HS33 brakes from being hit. - Suitable for frames with 100-105mm brake mounts spacing. - 55mm vertical clearance from the top bolt hole to make sure it fits on both 20" and 26" wheels. - Supplied with bolts and spacers, ready to fit. Dimensions - Maximum spacing between bolts: 105mm - Vertical clearance: 55mm Finishes - Black, white or silver. - Laser etched Trialtech logo. Weight - 44g (plus bolts and spacers at 18g a set).