Product Description The Progressive steel coil from MRP offers you a progressive spring characteristic, and thus enables optimised damping behaviour and the use of steel coil shocks in frames whose geometry is matched to air shocks. It is suitable for various rear shocks. Specifications:Application:All Mountain, EnduroRear Shock (Size x Travel):200 - 230 x 51 - 65 mmTravel:65 mmInner Diameter:38 mm (1.5" )Compatibility:MRP Hazzard shocks (matching spacers required 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/inch)MRP Raze V1 with 200 - 222 x 51 - 63 mm (matching spacers required)RockShox Kage / Vivid / Super Deluxe Coil shocks 185 - 230 x 50 - 65 mm (for 185 mm installation length only up to 450+ lbs; for some combinations spacers are required)Fox Racing Shox DHX2 shock 205 - 230 mm x 50 - 65 mm (matching spacers required)Fox Racing Shox Van RC / RC4 shock 216 - 230 x 57.5 - 65 mm (matching spacers required)Cane Creek shock 205 - 230 mm x 50 - 65 mm (matching spacers required)Models:300+ lbs: Coil Length:126 mmSpring Rate:275 - 325 lbs/inch (at 51 - 57 mm stroke) / 300 - 400 lbs/inch (at 60 - 65 mm stroke)Manufacturer Number:WB-99-0200 350+ lbs: Coil Length:129 mmSpring Rate:350 - 375 lbs/inch (at 51 mm stroke) / 350 - 400 lbs/inch (at 55 - 65 mm stroke)Manufacturer Number:WB-99-0201 400+ lbs: Coil Length:129 mm (+/- 2.5 mm)Spring Rate:400 - 450 lbs/inch (at 51 - 60 mm stroke) / 400 - 475 lbs/inch (at 63 - 65 mm stroke)Manufacturer Number:WB-99-0202 450+ lbs: Coil Length:134 mm (+/- 2.5 mm)Spring Rate:425 - 500 lbs/inch (at 51 - 60 mm stroke) / 425 - 525 lbs/inch (at 63 - 65 mm stroke)Manufacturer Number:WB-99-0203 500+ lbs: Coil Length:137 mm (+/- 2.5 mm)Spring Rate:475 - 575 lbs/inch (at 51 - 57 mm stroke) / 475 - 600 lbs/inch (at 60 - 65 mm stroke)Manufacturer Number:WB-99-0204 550+ lbs: Coil Length:141 mm (+/- 2.5 mm)Spring Rate:525 - 650 lbs/inch (at 51 - 57 mm stroke) / 525 - 675 lbs/inch (at 60 mm stroke) / 550 - 675 lbs/inch (at 63 - 65 mm stroke)Manufacturer Number:WB-99-0205 600+ lbs: Coil Length:143.5 mm (+/- 2.5 mm)Spring Rate:550 - 675 lbs/inch (at 51 mm stroke) / 550 - 700 lbs/inch (at 55 - 60 mm stroke) / 575 - 725 lbs/inch (at 63 - 65 mm stroke)Manufacturer Number:WB-99-0206Contents:1 x MRP Progressive Steel Coil Manufacturer: MRP 580 N. Westgate Dr. Grand Junction CO 81505 USA info@mrpbike.com Distributor: everyday26 Siedlerstr. 22 84109 Wörth Germany info@everyday26.de