Product Description The MRP spacers can be used to combine the Enduro SL or Progressive steel coil with different shocks. Models:MRP Hazzard A: Compatibility:MRP Hazzard shock with Enduro SL or Progressive steel coil, when combining a 63 to 65 mm shock stroke with a spring rate up to 425 lbs/inch or a 57.5 to 60 mm shock stroke with a spring rate up to 375 lbs/inchSpacer Size:4 mm / 8 mmManufacturer Number:WB-98-0500 MRP Hazzard B: Compatibility:MRP Hazzard, Raze V2 shock with standard steel coilSpacer Size:4 mm / 8 mmOuter Diameter - Spring Plate:37.5 mm (1.475" )Inner Diameter - Preload Ring:36.8 mm (1.45" )Manufacturer Number:WB-98-0501 MRP Raze / Fox VAN RC / RC4: Compatibility: MRP Raze V1 shock up to 2018 model with Progressive or Enduro SL steel coilFox Racing Shox VAN RC or RC4 shock 216 - 230 x 57.5 - 65 mm with Progressive steel coilSpacer Size:4 mm / 8 mmOuter Diameter - Spring Plate:37.5 mm (1.475" )Inner Diameter - Preload Ring:34.3 mm (1.35" )Manufacturer Number:WB-98-0502 Fox DHX2: Compatibility:Fox Racing Shox DHX2 Shock 205 - 230 x 50 - 65 mm with Progressive steel coilSpacer Size:2 mm (2 pieces)Outer Diameter - Spring Plate:37 mmInner Diameter - Preload Ring:35 mmManufacturer Number:WB-98-0503 RockShox: Compatibility: RockShox Kage, Vivid, Super Deluxe Coil shock 185 x 50 - 55 mm with Enduro SL or Progressive steel coil (Progressive only up to 450+ lbs)*RockShox Kage, Vivid, Super Deluxe Coil Shock 200 - 230 x 50-65 mm with Enduro SL or Progressive steel coil*Spacer Size:8 mm (2 pieces)Outer Diameter - Spring Plate:37.5 mm (1.475" )Inner Diameter - Preload Ring:36.8 mm (1.45" )Manufacturer Number:WB-98-0504 * It is possible that for shock dimensions of 185 - 205 x 50 - 65 mm you will need none, one or both spacers depending on the shock and suspension rate. Measure your shock and note the spring length of the desired suspension stiffness and the spacer size to determine if spacers are necessary. Cane Creek: Compatibility:Cane Creek Double Barrel Shock 205 - 230 x 50 - 65 mm with Progressive Steel CoilSpacer Size:2 mm (2 pieces) / 8 mmOuter Diameter - Spring Plate:37.5 mm (1.475" )Inner Diameter - Preload Ring:36.3 mm (1.43" )Manufacturer Number:WB-98-0505Contents:2 x MRP spacers or 3 x MRP spacers (Cane Creek only) Manufacturer: MRP 580 N. Westgate Dr. Grand Junction CO 81505 USA info@mrpbike.com Distributor: everyday26 Siedlerstr. 22 84109 Wörth Germany info@everyday26.de