*520 Chain Kit - Superlite RSX Series 520 Chain & Sprocket Kit - YAMAHA MT-03 | YZF-R3 '15-23

Stock Gear Ratio - 14 Front | 43 Rear 

Superlite RSX Series conversion kits shave unsprung "rotating" weight which in turn provides better acceleration, braking and handling. All kits include high quality RSX Series sprockets with multiple gear ratio options and high strength D.I.D. X-Ring sealed chains cut to length. These championship winning sprocket kits are extremely strong and built to last!

Each sprocket kit includes -

(1) Superlite XD Series chromoly steel drilled and lightened front sprocket

(1) Superlite RSX Series black high carbon steel rear sprocket OR RSX-R Series black hard anodized 7075-T6 aluminum rear race sprocket

(1) High strength D.I.D. 520 O'ring or heavy duty X'ring sealed chain cut to length

(1) Matching D.I.D. Rivet style connecting link

Chain Options - 

520 ERS3 Lightweight Race Series Chain - Recommended for motorcycles with 300cc's or smaller

520 VO Street Series Chain - Recommended for motorcycles with 750cc's or smaller

520 VX3 Pro Street Series Chain - Recommended for motorcycles with 800cc's or smaller

520 ERV7 Race Series Chain - Recommended for motorcycles with 1000cc's or smaller