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GY6 49cc-100cc (QMB139) - Belt - Clutch - Variator

Belt, clutch, and variator components for GY6 49cc–100cc (QMB139) engines keep small scooters accelerating smoothly and delivering power reliably. These parts regulate how the CVT transmission engages, shifts, and responds under load, making them essential for everyday performance. Whether you’re replacing a worn drive belt, refreshing clutch parts, or installing a new variator on scooters from TaoTao, Jonway, Peace Sports, and other Chinese brands, these components help restore smooth takeoff, steady speed, and consistent power delivery.

GY6 49cc-100cc (QMB139) - Belt - Clutch - Variator
30 Items
VARIATOR KIT for GY6-50 QMB139 49-90cc ATVs & Scooters Shaft=14mm

VARIATOR KIT for GY6-50 QMB139 49-90cc ATVs & Scooters Shaft=14mm

$34.99

Part #: 633470

High Performance Clutch GY6-50 Fits GY6-49-100cc scooters. Great off the line performance

High Performance Clutch GY6-50 Fits GY6-49-100cc scooters. Great off the line performance

$69.99

Part #: 816113

Rear Drive Clutch Pulley GY6-50 QMB139 49-90cc Scooter Motors Bell ID=107mm, Shaft=12mm, Splines=22

Rear Drive Clutch Pulley GY6-50 QMB139 49-90cc Scooter Motors

$49.99

Part #: 633466

Sold out
16x13 (4.0g) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

16x13 (4.0g) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

$16.99

Part #: 633311

16X13 (5.5g) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

16X13 (5.5g) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

$16.99

Part #: 634175

16x13 (6.5g) (Most Common Size) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

16x13 (6.5g) (Most Common Size) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

$16.99

Part #: 634005

16x13 (7.5g) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

16x13 (7.5g) GY6-50 QMB139 49cc Chinese Scooter Motors Clutch Roller Weights Set

$16.99

Part #: 634174

VARIATOR SLIDE GUIDE (SET) GY6-50 49-90cc ATVs & Scooters

VARIATOR SLIDE GUIDE (SET) GY6-50 49-90cc ATVs & Scooters

$6.99

Part #: 634248

VARIATOR DRIVE FACE Shaft =13mm Splines=26 Fits GY6-50 QMB139 49cc Scooter Motors

VARIATOR DRIVE FACE Shaft =13mm Splines=26 Fits GY6-50 QMB139 49cc Scooter Motors

$9.99

Part #: 633475

Plastic Variator Cooling Fan GY6-50 QMB139 49cc Scooter-ATV Motors OD=90 ID=40

Plastic Variator Cooling Fan GY6-50 QMB139 49cc Scooter-ATV Motors OD=90 ID=40

$7.99

Part #: 633471

Belt 669x18.1x30 BandoGY6-50 QMB139 49cc Chinese Sccoter Motors With 10

Belt 669x18.1x30 Bando GY6-50 QMB139 49cc Chinese Scooter Motors With 10" Wheels

$19.99

Part #: 816131

Belt 669x18x30 Economy Belt GY6-50 QMB139 49cc Chinese Scooter Motors With 10

Belt 669x18x30 Economy Belt GY6-50 QMB139 49cc Chinese Scooter Motors With 10" Wheels

$16.99

Part #: 634186

Belt 669x18x30 KEVLAR GY6-50 QMB139 49cc Chinese Scooter Motors With 10

Belt 669x18x30 KEVLAR GY6-50 QMB139 49cc Chinese Scooter Motors With 10" Wheels

$26.99

Part #: 633356

Belt 669x18x30 Powerlink GY6-50 QMB139 49cc Chinese Scooter Motors With 10

Belt 669x18x30 Powerlink GY6-50 QMB139 49cc Chinese Scooter Motors With 10" Wheels

$24.99

Part #: 634623

Belt 729x17.5x30 Economy Fits Most Chinese GY6 49cc 4 stroke Scooters With 12&13

Belt 729x17.5x30 Economy Fits Most Chinese GY6 49cc 4 stroke Scooters With 12&13" Wheels and some Honda, Kymco, and E-Ton Scooters

$16.99

Part #: 815557

Belt 729x17.5x30 Kevlar Fits Many Chinese GY6 49-150cc ATVs, GoKarts, and 4 stroke Scooters With 12 & 13

Belt 729x17.5x30 Kevlar Fits Many Chinese GY6 49-150cc ATVs, Go Karts, and 4 stroke Scooters With 12 & 13" Wheels

$26.99

Part #: 633457

Belt 729x17.5x30 POWERLINK Fits Many Chinese GY6 49-150cc ATVs, GoKarts, and 4 stroke Scooters With 12 & 13

Belt 729x17.5x30 POWERLINK Fits Many Chinese GY6 49-150cc ATVs, Go Karts, and 4 stroke Scooters With 12 & 13" Wheels

$24.99

Part #: 634707

Rear Clutch, Belt & Gasket GY6 50cc 49cc QMB139 Short Case 4 Stroke Scooters

Rear Clutch, Belt & Gasket GY6 50cc 49cc QMB139 Short Case 4 Stroke Scooters

$55.19

Part #: 100575

Variator Belt Kit, Long Case Chinese GY6 QMB139 49cc Scooter 729x17.5x30 Powerlink Belt, Crankcase Gasket Shaft=14mm

Variator Belt Kit, Long Case Chinese GY6 QMB139 49cc Scooter 729x17.5x30 Powerlink Belt, Crankcase Gasket Shaft=14mm

$57.99

Part #: 100600

Variator Belt Kit, Short Case Chinese GY6 QMB139 49cc Scooter 669x18x30 Powerlink Belt, Crankcase Gasket Shaft=14mm

Variator Belt Kit, Short Case Chinese GY6 QMB139 49cc Scooter 669x18x30 Powerlink Belt, Crankcase Gasket Shaft=14mm

$57.99

Part #: 100574

Flange Nut (M10x14) Used for clutch nuts on GY6-50 QMB139 49cc Chinese Scooter Motors

Flange Nut (M10x14) Used for clutch nuts on GY6-50 QMB139 49cc Chinese Scooter Motors

$1.69

Part #: 633864

VARIATOR KEY 3 PRONG GY6-50 QMB139 49-90cc Scooter-ATV Motors

VARIATOR KEY 3 PRONG GY6-50 QMB139 49-90cc Scooter-ATV Motors

$2.99

Part #: 634690

VARIATOR KIT (HIGH PERFORMANCE) KOSO GY6-QMB 49cc Chinese Scooters Shaft=14mm OD=88

VARIATOR KIT (HIGH PERFORMANCE) KOSO GY6-QMB 49cc Chinese Scooters Shaft=14mm OD=88

$44.99

Part #: 634652

Inner Clutch 105mm HIGH PERFORMANCE RED Spring GY6-50 QMB139 49cc Chinese Scooter Motors

Inner Clutch 105mm HIGH PERFORMANCE RED Spring GY6-50 QMB139 49cc Chinese Scooter Motors

$34.99

Part #: 815359

16X13 (5.0g) High Performance Clutch Sliders Set for GY6-49, 50, 70, 80cc 4 Stroke Scooter Engines

16X13 (5.0g) High Performance Clutch Sliders Set for GY6-49, 50, 70, 80cc 4 Stroke Scooter Engines

$16.99

Part #: 815402

16X13 (6.0g) High Performance Clutch Sliders Set for GY6-49, 50, 70, 80cc 4 Stroke Scooter Engines

16X13 (6.0g) High Performance Clutch Sliders Set for GY6-49, 50, 70, 80cc 4 Stroke Scooter Engines

$16.99

Part #: 815403

Clutch Spring Set HIGH PERFORMANCE Blue +1000 RPM GY6-50 QMB139 49cc Chinese Scooter Motors

Clutch Spring Set HIGH PERFORMANCE Blue +1000 RPM GY6-50 QMB139 49cc Chinese Scooter Motors

$12.99

Part #: 815407

Clutch Spring Set HIGH PERFORMANCE Red +2000 RPM GY6-50 QMB139 49cc Chinese Scooter Motors

Clutch Spring Set HIGH PERFORMANCE Red +2000 RPM GY6-50 QMB139 49cc Chinese Scooter Motors

$12.99

Part #: 815406

Clutch Spring Set HIGH PERFORMANCE Yellow +1500 RPM GY6-50 QMB139 49cc Chinese Scooter Motors

Clutch Spring Set HIGH PERFORMANCE Yellow +1500 RPM GY6-50 QMB139 49cc Chinese Scooter Motors

$12.99

Part #: 815356

High Performance 50cc Short Case Scooter Clutch & Belt Kit- Front Clutch Variator, Rear Clutch Pulley, PowerLink Drive Belt & Belt Cover Gasket, Increased Performance Potential

High Performance 50cc Short Case Scooter Clutch & Belt Kit- Front Clutch Variator, Rear Clutch Pulley, PowerLink Drive Belt & Belt Cover Gasket, Increased Performance Potential

$139.99

Part #: 100734

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