Tech Tip: V-Brake Arm Lengths

Despite their age, our articles on v-brakes and v-brake conversions remain very popular with GRAVELBIKE’s readers. To help folks determine whether a certain brake will clear their bikes’ fenders or fat tires, we’ve compiled a list of popular v-brakes’ arm lengths (the list will be updated as new information becomes available).

Model Length (mm)
Tektro 917A 75
Tektro 926AL 80
Paul MiniMoto 83
TRP CX8.4 84
BOX Eclipse (short) 85
Promax P-1 (short) 85
Tektro BX3v 85
Tektro RX5 85
Shimano BR-R353 87
Tektro RX6 90
TRP CX9 90
Tektro 930AL 95
Tektro BX25 95
Tektro M530 102
Tektro M730 102
TRP M920 102
Paul Motolite 103
Avid SL 104
KCNC 105
AEST 106
Koski Lite 106
Shimano Deore XT BR-T780 107
BOX Eclipse (long) 108
Promax P-1 (long) 108
Tektro 857AL 110
Tektro C310 110

8 thoughts on “Tech Tip: V-Brake Arm Lengths

  1. It would be nice to know what brake levers work with them. I tried the Paul MiniMoto with Shimano Ultegra 9 speed brifters and the levers bottomed out. No way would they work.

    • I’ve used Paul’s MiniMotos with various levers (Campy, Shimano) without any issues. This illustrates that performance is often influenced by factors such as brake boss spacing, rim width, brake reach, etc.

      In my experience, most modern integrated brake/shift levers will work with 80-85mm brake arms. Longer arms (90-95mm) generally perform better with levers that pull slightly more cable, such as Shimano’s 5700 and 6700. For anything longer, you’ll generally need v-specific levers such as those offered by Cane Creek, Gevenalle (aka, Retroshift), or Tektro.

  2. Pingback: Opinions on TRP CX8.4 for non-race use

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