The pistons are insulated for improved heat management and control of brake pad wear

or four bikes

Stack Heights: Consistent top and bottom stack heights across 10

RF welded seams to create superior bonds at a molecular level

worn-out top assembly

Hope AM-Freeride 31.8mm Bar Clamp Stem - Blue - 31.8mm - 50mm x 0 Degree - 1 1-8th Inch eBay The pistons are insulated forThe Hope AM Freeride 31. 8mm Bar Clamp Stem is CNC machined from a solid billet of 2014 T6 aluminium for strength and durability. The stem has more material taken out to save weight, a new front plate design, opposing steerer clamp bolts and a four bolt front handlebar clamp for more rigidity. Specifications: Colour Black. Weight 135g. Length 50mm. Bar Clamp Diameter 31. 8mm. Stem Angle 0. S. H. I. S. Stem Clamp Diameter 28. 6mm.