Enduro HS Bearing 1.375" 37 x 49 x 7 45x45° Variant:Enduro Headset Bearing 1.375inch Stainless ACB 4545 1375 37 x 49 x 7 mm 45x45deg MH-P21 ACB3749 MH-P21S TEX-3801E Front and rear specific rims

Front and rear specific rims optimized to address the specific performance requirements and loads of mountain bike riding

We use our soft

The Enduro line of bearings are available in High-Carbon Chromium Steel

and some older Isis BBs

Enduro HS Bearing 1.375" 37 x 49 x 7 45x45° Variant:Enduro Headset Bearing 1.375inch Stainless ACB 4545 1375 37 x 49 x 7 mm 45x45deg MH-P21 ACB3749 MH-P21S TEX-3801E Front and rear specific rimsACB 4545 1375S 1 3 8" 440C stainless steel Angular Contact Headset bearing (37mm x 49mm x 7mm: 45 x 45deg) Angular contact headset bearing featuring 440C stainless steel balls and races for superior corrosion protection. This size bearing is also known in the bike Industry by these part numbers: MH P21 ACB3749 MH P21S TEX 3801E Not all stainless steels created equal. Enduro only uses 440C stainless steel balls and races to provide long life and