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The one-piece 4-piston caliper is made of forged aluminium for an extraordinary degree of rigidity
Anodized Red
5" width 4
Chromoly chainring bolts
Defined Color Black Offset (mm) 20 Diameter 31
FSA Afterburner Lightweight Stem 31.8mm x 40mm 0° MPFN-TS-2.3 The one-piece 4-piston caliper isFSA Afterburner Lightweight Stem 31. 8mm x 40mm 0. The FSA Afterburner Stem is a robust and versatile option for mountain bikers tackling aggressive trails. Built from forged aluminum it offers a strong lightweight platform for precise steering and durability. Its trail ready design makes it a dependable choice for riders who demand control and confidence on technical terrain.
