Nukeproof Steel Headset Bearing

Genuine replacement headset cartridge bearing from Nukeproof.

• SB-A-30mm: Replacement bearing for all 1 1/8th Nukeproof headsets (Top Cups: T1 & T2, Bottom Cups B1-B4) Fits Nukeproof 1 1/8” headset cups for 1 1/8” steerer
• SB-B-40mm-Pre 2015: Replacement bearing for 1.5” Nukeproof headsets (pre 2015)
• SB-B-40mm-2015 onwards: Replacement bearing for 1.5” Nukeproof headsets (2015 onwards Top Cup T3, Bottom Cup B5 – B8) Fits Nukeproof 1.5” headset cups for 1.5” steerer

Specifications:

• SB-A - 30mm: 41.0 x 45 x 45
• SB-B - 40mm - Pre 2015: 51.8 x 36 x 45
• SB-B - 40mm - 2015 Onwards: 51.8 x 45 x 45