Overview Reviews Product Description NARAKU ADJUSTABLE DRIVE SHEAVE FOR 50cc QMB139 ENGINES. THE MORE LINEAR SLOTS ON THIS DRIVE SHEAVE ALLOW FOR BETTER ACCELERATION. THIS PART CAN ALSO BE CALLED A TORQUE DRIVER OR SECONDARY SLIDER. OVERALL OUTER DIAMETER: 118mm INNER DIAMETER: 33.5mm Product Videos Custom Field Product Reviews Write a Review Write a Review × NARAKU NARAKU 50cc QMB139 ADJUSTABLE DRIVE SHEAVE Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Quick view Details SSP-G | sku: 169-382 SSP-G 50cc - 100cc QMB139 ADJUSTABLE DRIVE SHEAVE MSRP: Now: $44.00 Add to Cart Quick view Details NARAKU | sku: 137-25 NARAKU VARIATOR CONTROL SHIMS FOR QMB139 50cc MSRP: Now: $4.75 Add to Cart Quick view Details NARAKU | sku: 137-54 NARAKU PERFORMANCE COIL FOR 50cc (QMB139) & 150cc (GY6) MSRP: Now: $22.75 Add to Cart Quick view Details NARAKU | sku: 137-62 NARAKU 50cc - 100cc QMB139 107mm CLUTCH BELL MSRP: Now: $64.95 Add to Cart Quick view Details NARAKU | sku: 137-2 NARAKU (50cc) QMB139 TRANSMISSION KIT FOR SCOOTER *ECO KIT* MSRP: Now: $128.95 Add to Cart Quick view Details NARAKU | sku: 137-24 NARAKU DRIVE BELT 788-18-30 FOR SCOOTER 50cc QMB139 LONG CASE MOTORS MSRP: Now: $24.95 Out of stock Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details NARAKU | sku: 137-25 NARAKU VARIATOR CONTROL SHIMS FOR QMB139 50cc MSRP: Now: $4.75 Add to Cart Quick view Details NARAKU | sku: 137-54 NARAKU PERFORMANCE COIL FOR 50cc (QMB139) & 150cc (GY6) MSRP: Now: $22.75 Add to Cart Quick view Details NARAKU | sku: 137-62 NARAKU 50cc - 100cc QMB139 107mm CLUTCH BELL MSRP: Now: $64.95 Add to Cart Quick view Details NARAKU | sku: 137-2 NARAKU (50cc) QMB139 TRANSMISSION KIT FOR SCOOTER *ECO KIT* MSRP: Now: $128.95 Add to Cart Quick view Details NARAKU | sku: 137-24 NARAKU DRIVE BELT 788-18-30 FOR SCOOTER 50cc QMB139 LONG CASE MOTORS MSRP: Now: $24.95 Out of stock Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details NARAKU | sku: 137-54 NARAKU PERFORMANCE COIL FOR 50cc (QMB139) & 150cc (GY6) MSRP: Now: $22.75 Add to Cart Quick view Details NARAKU | sku: 137-62 NARAKU 50cc - 100cc QMB139 107mm CLUTCH BELL MSRP: Now: $64.95 Add to Cart Quick view Details NARAKU | sku: 137-2 NARAKU (50cc) QMB139 TRANSMISSION KIT FOR SCOOTER *ECO KIT* MSRP: Now: $128.95 Add to Cart Quick view Details NARAKU | sku: 137-24 NARAKU DRIVE BELT 788-18-30 FOR SCOOTER 50cc QMB139 LONG CASE MOTORS MSRP: Now: $24.95 Out of stock Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details NARAKU | sku: 137-62 NARAKU 50cc - 100cc QMB139 107mm CLUTCH BELL MSRP: Now: $64.95 Add to Cart Quick view Details NARAKU | sku: 137-2 NARAKU (50cc) QMB139 TRANSMISSION KIT FOR SCOOTER *ECO KIT* MSRP: Now: $128.95 Add to Cart Quick view Details NARAKU | sku: 137-24 NARAKU DRIVE BELT 788-18-30 FOR SCOOTER 50cc QMB139 LONG CASE MOTORS MSRP: Now: $24.95 Out of stock Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details NARAKU | sku: 137-2 NARAKU (50cc) QMB139 TRANSMISSION KIT FOR SCOOTER *ECO KIT* MSRP: Now: $128.95 Add to Cart Quick view Details NARAKU | sku: 137-24 NARAKU DRIVE BELT 788-18-30 FOR SCOOTER 50cc QMB139 LONG CASE MOTORS MSRP: Now: $24.95 Out of stock Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details NARAKU | sku: 137-24 NARAKU DRIVE BELT 788-18-30 FOR SCOOTER 50cc QMB139 LONG CASE MOTORS MSRP: Now: $24.95 Out of stock Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details NARAKU | sku: 137-1 NARAKU (50cc - 100cc) QMB139 SUPER TRANSMISSION KIT FOR SCOOTER MSRP: Now: $249.95 Choose Options Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart ×
Quick view Details GY6 STORE | sku: 63814 SLIDING SHEAVE TORQUE SPRING QMB139 50cc - 100cc MSRP: Now: $1.95 Add to Cart