Box Components Vector M30-P Cranks have a super-stiff, cold-forged, 30-millimeter, 7075 aluminum alloy, Praxis M30 (28/30mmm)spindle that fits frames with European bottom brackets, paired with the same oversized, hollow-forged arms and 104 BCD spider as Box Vector M35 cranks. An independent test lab compared a wide range of cranks to both the Vector M35 and Vector M30-P cranks. Both Vectors proved to be stiffer than anything on the market, with the M35's coming in at about 10 percent stronger than the M30-P's. The Box Vector M30-Ps include a M30 (28/30mmm) external, BSA bottom bracket that fits frames with European bottom bracket shells. Compatible Praxis BB86/92 and BB30/PF30 bottom brackets are sold separately. 

Material 7075-T6 Aluminium Length 172.5, 175, 177.5 or 180mm Finish Matte black w/ laser-etched graphics
Q Factor 163mm
Includes: Praxis External BSA Bottom Bracket M30 BB Installation Tool

M30 spindles are only compatible with M30 (28/30mm) bottom brackets

Weight:

172.5mm: 753 grams / 26.6 ounces

175mm: 755 grams / 26.6 ounces

177.5mm: 768 grams / 27.1 ounces

180mm: 771 grams / 27.2 ounces

BB only: 115 grams / 4.1 ounces M-30 BSA

Installation Guide

Please note: The installation guide from Praxis makes reference to bottom bracket spacers, but these are only required for MTB frames. Everything needed to run these cranks with BMX frames is included in the box. Also, do not use pedal washers when installing pedals onto these cranks. Vector cranks were designed to be used without pedal washers.