50cc Bike Transmission

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Transmission

Chain Kit aluminium blue 13x53 - 420 Rieju MRT

Chain Kit aluminium Neochrome 14x53 - 420 Doppler Derbi GPR / Aprilia RS4

Chain Kit aluminium Neochrome 14x53 - 420 Doppler Derbi Senda X-treme

Chain Kit aluminium Neochrome 13x53 - 428 Doppler Beta RR

Chain Kit aluminium Neochrome 13x53 - 420 Doppler Beta RR

Rear Sprocket 53 teeth - 420 Doppler Alu CNC neochrome Rieju MRT

Rear Sprocket 53 teeth - 420 Doppler Alu CNC neochrome Derbi DRD Pro

Rear Sprocket 53 teeth - 420 Doppler Alu CNC Neochrome Beta RR

Chain Kit aluminium black 13x53 - 428 Doppler Beta RR

Chain Kit aluminium red 13x53 - 428 Doppler Beta RR

Chain Kit aluminium black 13x53 - 420 Doppler Beta RR

Chain Kit aluminium red 13x53 - 428 Doppler Sherco 50cc

Chain Kit aluminium black 13x53 - 420 Doppler Rieju MRT / Yamaha DT

Chain Kit aluminium black 14x53 - 420 Doppler Derbi GPR / Senda X-treme

Chain Kit aluminium red 14x53 - 420 Doppler Derbi Senda DRD

Chain Kit 12x52 - 420 Rieju MRT

Gearbox AM6

Chain Master Link 420 Stage6 neon orange

Chain Master Link 420 Stage6 red

Chain Master Link 420 Stage6 blue

Chain Guide Doppler Derbi / Aprilia / Gilera gold

Chain reinforced 140 d.420 links Doppler gold

Rear Sprocket 52 teeth - 420 Peugeot XP6

Gearwheel 4th gear secondary shaft T24 Euro 3 (D50B0)

Secondary Gear Shaft Top Performances Minarelli AM6 V2

Gearwheel 3rd gear secondary shaft Top Performances T29 AM6 V2

Chain reinforced 106 links D.415 Doppler gold

Chain Master Link Doppler 420 blue

Chain Master Link Doppler 420 black

Chain reinforced 138 links D.428 orange

Chain reinforced 130 links D.420 black

Rear Sprocket 48 teeth - 420 Rieju MRT

Rear Sprocket 53 teeth - 420 Doppler aluminium CNC black Aprilia SX 50

Rear Sprocket steel 71 teeth - 420 Rieju MRT

Rear Sprocket steel 46 teeth - 420 IGM Rieju MRT

Chain Master Link chain 428, reinforced, gold

Gearbox Washers and Circlips AM6 (1st series)

Gear Selector Fork Set forged Top Performances AM6

Chain Kit steel 13x53 - 428 Doppler Origin Beta RR

Rear Sprocket steel 53 teeth - 420 Doppler Origin Fantic XM / XE

Rear Sprocket steel 53 teeth - 428 Doppler Origin Sherco 50

Rear Sprocket steel 62 teeth 420 CPI SM

Rear Sprocket steel 53 teeth 420 CPI SM

Chain Tensioner Roll Derbi Senda

Chain Kit Alu Sherco SM-R Afam 13x56 - 428 (original ratio)

Chain Kit Sherco SM-R Afam 11x60 - 428 (original gear ratio)

Chain Kit Aprilia RX 50 1999 - 2001 Afam 12x51 - 420 (original gear ratio)

Rear Sprocket Sherco SM 50 Afam 56 teeth - 428

Rear Sprocket steel Derbi DRD Pro 50 teeth - 420

Shift Drum with forks and bolts Generic / CPI / KSR

Gear Selector Shaft Generic / CPI / KSR

Chain Kit Doppler 13x53 - 428 Sherco 50 Alu Black

Chain Kit Doppler 13x53 - 428 Sherco 50 Alu Blue

Chain Guide Doppler Derbi / Aprilia / Gilera Neochrome

Rear Sprocket Doppler 53 teeth - 428 aluminum black Sherco 50

Rear Sprocket Doppler 53 teeth - 428 aluminum blue Sherco 50

Chain Kit 14x60 - 420 Afam Rieju MRT

Chain Kit steel 14x53 - 420 Doppler Origin Derbi Senda DRD

Chain Kit steel 13x53 - 420 Doppler Origin Yamaha TZR 50

Chain Kit steel 13x53 - 420 Doppler Origin Beta RR

The gearbox - tuning via gear ratio

The complex world of gear ratios