SKF Low-Friction Dust Wiper Seal Kit: RockShox 32mm Fits A1-A2 SID (08- 16) Reba Revelation Recon Sector Argyle Tora and XC32 Forks. SKFs seal kits are constructed of a low friction material that reduces the breakaway force in your shock and allows it to be more reactive. These 32mm seals fit the most common cross country and trail forks in the market.