Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black MFPN=972-01-566 the Delta Comp features a

the Delta Comp features a Nomex® Honeycomb core

It provides 10" of extension and 2" of rise/drop for fitment options to clear spare tires or add ground clearance

} Tacx smart network adapter uses a connection with Ethernet or Wi-Fi® technology to create a more stable connection for Tacx NEO 3M Smart Trainers

Model Gravine Pro Size 700c Width 40mm Compound - Bead Folding Type Tubeless Color Black/Tan Weight -

Promax EX-1 Alloy external Sealed Bottom Bracket 68/73mm Black MFPN=972-01-566 the Delta Comp features aEX 1 External bottom brackets feature cold forged and CNC machined alloy cups dual labyrinth bearing covers and precision sealed bearings. They are the perfect match to Promax CF 2 and HF 2 cranks and ultimate upgrade to the budget BBs sold with most crank sets. Fits all 24 millimeter bottom bracket spindles and frames with 68 or 73 x BC1. 37 bottom bracket shells Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 73