Cartridge Bottom Bracket - Modus BC73/BC80 Stock Item:BOTTOM BKT MODUS 68 x 124.5mm (BC73) while the other end fits

while the other end fits into the tension springs to rotate the brake on its bolt

TRUE 22 – twenty-two usable gears in all gear combinations with no rasp or rub

The Elkhorn comes standard

Secure with four bolt faceplace using Torx© T25 bolt heads

20L Capacity

Cartridge Bottom Bracket - Modus BC73/BC80 Stock Item:BOTTOM BKT MODUS 68 x 124.5mm (BC73) while the other end fitsCARTRIDGE BOTTOM BRACKET MODUS BC73 BC80 VP BC73 The Work Horse Bottom Bracket. Sealed cartridge bearings Boron steel spindle Phosphated cups Anodized aluminum sheath Thread spec: BC1. 37 x 24T 280 grams JIS taper (fits modern cranks not compatible with classic European cranks) Available in the following sizes: 68mm shell by: 110. 5mm,113mm, 115mm,116mm, 118mm, 122. 5mm, 127. 5mm 73mm shell by: 113mm,122. 5mm