HP Velotechnik Front Boom KO Black with Scale with Derailleur Tube

Replacement front boom for HP Velotechnik Trikes.  Includes Front Derailleur Tube (1 1/8" dia), water bottle and accessory bosses.

Specifications:

• Boom Overall Length is 20 1/2"
• Boom Outer Diameter is 2.1" (53mm)
• Bottom Bracket Shell Width is 68mm
• Bottom Bracket Inner Diameter is 1 5/16" (33.3mm)
• Accepts Standard BSA 24 TPI threaded bottom brackets.