The 450r sprocket will fit, in case when you go to buy they don't know how to cross reference the part. It's the sprocket at the front part of the chain. Read above thread, but you don't need to tip quad or remove skid plate. A long extension and a swivel bolt will come off easy. If you want you can take off side cover, with 5mm allen and a 10mm socket. And just re-adjust chain when done. Sprocket cost like anywhere from $8.95 to $24.00. Once I put my big 3 on, I replaced my sprocket with oem 14t. And it will pull in 2nd gear with no throttle.
#1 2008 Honda Trx700xx HMF Performance Exhaust, PCV, Stroked 710cc, 10.5:1 Wiseco Piston, Frt Elka Stage 4's, Fox Podium X rear's, EHS Lid, L8ton 11/16" sway bar, DG 6 Pack Rack, PRM Desert II Bumper & Front Skids.
#2 2008 Trx700xx AMR Reaper, Ehs Big 3, P/P head, Xcalibur Cam, Hard Welded Rockers, +1 In/Ex Valves, +3 Throttle body, 11:1 CP Piston, Elka Stage 3 Legacy Shocks, L8ton 11/16th Sway Bar, PRM Front Skids, Desert II Bumper & Rear Utility Rack.
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