Renthal Ultralight Front & Rear Sprocket & R1 or R3 Chain & Kit Yamaha YZ250F(X) & 2005+ YZ125(X) 2T S8 Three machined semicircles to hold

Three machined semicircles to hold 5/16" to 9/16" size arbors or other parts you need to grip

Our frame-stiffening gusset kit will keep your stock frame from deforming under extreme riding conditions

2007-2015 KTM 450 XC-W

all CRF series

Operating range -10° C to 55° C (14° F to 131° F) Memory/History 50 sessions at max 100 shots per round before a ShotView™ app sync is required to save data to phone Interface USB-C Daily Smart Features Connectivity BLUETOOTH®  technology Mobile app ShotView™ app Chronograph Features Tracks rifles up to 5000 FPS Yes Tracks bows and crossbows up to 600 FPS Yes Track pistols up to 5000 FPS Yes Tracks air rifles up to 2000 FPS Yes Tracks airsoft up to 1000 FPS Yes Track other projectiles up to 5000 FPS Yes Calculates kinetic energy at muzzle Yes Calculates power factor Yes Calculates extreme spread Yes Calculates standard deviation Yes Calculates string average Yes Delete shots in string device or app Decimal precision Yes Add individual shot notes yes (on ShotView™ app) Add session notes yes (on ShotView™ app) Mark shots with clean/cold bore yes (on ShotView™ app) Exclude shot from average and standard dev calculations yes (on ShotView™ app) Tripod compatibility yes (¼-20 thread compatible)

Renthal Ultralight Front & Rear Sprocket & R1 or R3 Chain & Kit Yamaha YZ250F(X) & 2005+ YZ125(X) 2T S8 Three machined semicircles to holdFits (2001 on) Yamaha WR250F (2005 on) Yamaha YZ125 2 stroke (2020 on) Yamaha YZ125X 2 stroke (2001 on) Yamaha YZ250F (2015 on) Yamaha YZ250FX Renthal Grooved Front Sprockets Renthal front chain wheels are simply the finest front chain wheel on the market today. Front chain wheels feature a specially developed nickel chrome molybdenum steel which is case hardened and core refined to give the ultimate combination of strength and hardness. ULTRALIGHT