Assembly Guidelines.
(Torque specs, BB assembly, Brake caliper specs)
(Torque specs, BB assembly, Brake caliper specs)
Recommended Torque Specs
Below are our general recommendations for torque specs. Please note:
- For torque specs involving other parts, always verify the maximum torque specs from the respective PARTS manufacturer.
- Never exceed the lowest of the manufacturer-recommended and the OPEN-recommended maximum torque spec
- All bolts should be greased prior to assembly.
- Always use a torque wrench!!
5 Nm
Always use carbon compound on seatpost & grease on collar bolt
8 Nm
3 Nm
2 Nm
3 Nm
10 Nm
25 Nm
Hand-tight
4Nm
5Nm
5Nm
Balance smooth steering with eliminating headset play
Recommended Bottom Bracket Installation
When installing the bottom bracket into the BB shell, a compound can be used dependent on the materials and style of the bottom bracket:
Carbon assembly paste
Moly based non metallic Anti Seize Compound
For example Loctite 234227 (LOC51048) Moly Paste Anti-Seize Compound)
Carbon assembly paste on the cups
That touch the BB shell), grease on the threads (the sections that thread together)
Brake caliper bolt lengths U.P./U.P.P.E.R.
37mm “REAR” brake bolts for 30mm “chainstay”
43.2mm “REAR” brake bolts for 30mm “chainstay”
Shimano part# Y8N208030
“140mm” (rear) caliper + 160mm rotor, no adaptors, 2x 39mm "screws for 30-34 mm rear mount thickness”
2x 27mm
2x 33.2mm
“140mm” (rear) caliper + 140mm rotor (no adaptor) OR 160mm rotor + rear adaptor, 2x 29mm “screw for 20-24 mm rear mount thickness”
Brake caliper bolt lengths WI.DE.
2x 37mm "REAR” brake bolts for 30mm “chainstay”
2x 43.2mm “REAR” brake bolts for 30mm “chainstay”
Shimano part# Y8N208030
“140mm” (rear) caliper + 160mm rotor, no adaptors, 2x 39mm "screws for 30-34 mm rear mount thickness”
1x 27mm & 1x 32mm
SRAM part# 00.5318.005.004 & SRAM part# 00.5318.005.006
1x 33.2mm & 1x 38.2mm
Part# Y8N208010 & Part# Y8N208020
“140mm” (rear) caliper +160mm rotor, no adaptors, 1x 29mm “screw for 20-24 mm rear mount thickness” & 1x 34mm “screws for 25-29 mm rear mount thickness"
Part# AC18-DBSC29 & Part# AC18-DBSC34
Brake caliper bolt lengths MIN.D.
2x 37mm "REAR” brake bolts for 30mm “chainstay”
2x 43.2mm “REAR” brake bolts for 30mm “chainstay”
Shimano part# Y8N208030
“140mm” (rear) caliper + 160mm rotor, no adaptors, 2x 39mm "screws for 30-34 mm rear mount thickness”
1x 27mm & 1x 32mm
SRAM part# 00.5318.005.004 & SRAM part# 00.5318.005.006
1x 33.2mm & 1x 38.2mm
Part# Y8N208010 & Part# Y8N208020
“140mm” (rear) caliper +160mm rotor, no adaptors, 1x 29mm “screw for 20-24 mm rear mount thickness” & 1x 34mm “screws for 25-29 mm rear mount thickness"
Part# AC18-DBSC29 & Part# AC18-DBSC34