A replacement U-shaped, non-threaded 31.8 mm lower bracket for Profile Design clip-on aerobars, part number 189366. It is an aerobar clamp part, not a bottom bracket.

Compatibility & fit

Compatible bracket kits and aerobars: Supersonic (J5), Sonic, Subsonic, Neosonic, J4, Century, Legacy, ZBS and ADL.

Aerobar fitting and position set-up is a separate workshop service and isn't included in the price. Our workshop can fit it and check your aerobar set-up.

Profile Design warrants this product to the original retail purchaser against defects in materials and workmanship for two years from the date of original retail purchase. The warranty does not cover products that have been modified, misused, involved in a crash or impact, or damaged by improper assembly or by failing to follow the installation instructions.

This cover is in addition to your rights under the Australian Consumer Law. Keep your proof of purchase.

For warranty support, return the product to Tune Cycles and we'll manage the claim with Profile Design's Australian distributor.

  • Profile Design part 189366
  • U-shaped lower bracket, non-threaded
  • 31.8 mm
  • Fits Supersonic (J5), Sonic, Subsonic, Neosonic and more
Part number189366
TypeU-shaped lower bracket, non-threaded
Size31.8 mm
FitsSupersonic (J5), Sonic, Subsonic, Neosonic, J4, Century, Legacy, ZBS, ADL
SKU BCP-189366
Model # 189366
Barcode # 0723660008376
Brand Profile Design
Shipping Weight 0.4800kg
Shipping Width 0.120m
Shipping Height 0.100m
Shipping Length 0.800m