Springs & Weights

SSP-G 1500 RPM Torque Spring
SSP-G 1500 RPM Torque Spring
Part #: 169-97
Price: $ 14.99
SSP-G Performance 1500 RPM Torque Spring for 150cc and 125cc GY6 4-stroke engine based vehicles.
SSP-G 18x14 GY6 Roller Weight Tuning Kit
SSP-G 18x14 GY6 Roller Weight Tuning Kit
Part #: 169-449
Price: $ 29.99
SSP-G 18x14 Roller Weight Tuning Kit for 150cc and 125cc GY6 4-stroke QMI152/157 QMJ152/157 engines - Includes 6g to 17g weight options.
SSP-G 16x13 QMB139 Roller Weight Tuning Kit
SSP-G 16x13 QMB139 Roller Weight Tuning Kit
Part #: 169-448
Price: $ 29.99
SSP-G 16x13 Roller Weight Tuning Kit for 50cc 4-stroke QMB139 engines - Includes 3g to 14g weight options.
1000 RPM Torque Spring
1000 RPM Torque Spring
Part #: 169-9
Price: $ 14.99
Hoca Performance 1000 RPM Torque Spring for 150cc and 125cc GY6 4-stroke engine based vehicles.
2000 RPM Torque Spring
2000 RPM Torque Spring
Part #: 169-98
Price: $ 14.99
Hoca Performance 2000 RPM Torque Spring for 150cc and 125cc GY6 4-stroke engine based vehicles.
Hoca 15x12 Minarelli Roller Weight Tuning Kit
Hoca 15x12 Minarelli Roller Weight Tuning Kit
Part #: 169-447
Price: $ 24.99
Hoca 15x12 Roller Weight Tuning Kit for Minarelli 50cc 2-stroke engines - Includes 2g to 12g weight options.
1500 RPM Clutch Springs
1500 RPM Clutch Springs
Part #: 169-33
Price: $ 8.99
150cc and 125cc GY6 1500 RPM Performance clutch springs.
Dr. Pulley Variator Slides SP2418-K
Dr. Pulley Variator Slides SP2418-K
Part #: 169-368
Price: $ 9.99
Dr. Pulley Variator Slides for the Honda CN250.
Dr. Pulley Variator Slides SP2515-M
Dr. Pulley Variator Slides SP2515-M
Part #: 169-348
Price: $ 23.99
Dr. Pulley Variator Slides for the Yamaha Majesty 400, T Max 500 & Morphous.
GY6B 20x15 Roller Weights
GY6B 20x15 Roller Weights
Part #: 165-9
Price: $ 7.99
Stock 20x15 Roller Weights for 150cc GY6B 4-stroke ZNEN engines commonly found in Lance Phoenix, Flyscooters Cadenza, ZNEN ZN150T-18, Xingyue ITA-150, Motorino Cassini, CMS Prodigy, BMS Pathfinder and many more.
2000 RPM Clutch Springs
2000 RPM Clutch Springs
Part #: 169-34
Price: $ 8.99
Hoca 2000 RPM performance clutch springs for 150cc and 125cc GY6 4-stroke engines.
Torque Spring
Torque Spring
Part #: 151-144
Price: $ 9.99
Torque Spring for 50cc 4-stroke QMB139 engines.
1000RPM GY6 Clutch Spring Set
1000RPM GY6 Clutch Spring Set
Part #: 169-32
Price: $ 8.99
Hoca After-Market Performance 1000RPM Clutch Spring Set for 150cc and 125cc GY6 4-stroke engines.
Dr. Pulley Variator Slides SP2517-P
Dr. Pulley Variator Slides SP2517-P
Part #: 169-369
Price: $ 19.99
Dr. Pulley Variator Slides for the Piaggio X9 500, Piaggio MP3 400 & MP3 500.
Dr. Pulley Variator Slides SP2012-AA
Dr. Pulley Variator Slides SP2012-AA
Part #: 169-367
Price: $ 24.99
Dr. Pulley Variator Slides for the Kymco Downtown 300i.
Dr. Pulley Variator Slides SP2822-Q
Dr. Pulley Variator Slides SP2822-Q
Part #: 169-370
Price: $ 19.99
Dr. Pulley Variator Slides for the Kymco Xciting 500.
Minarelli Clutch Spring
Minarelli Clutch Spring
Part #: 161-108
Price: $ 2.99
Clutch Spring for 50cc 2-stroke Minarelli 1PE40QMB Jog engines
15x12 Performance Minarelli Roller Weights
15x12 Performance Minarelli Roller Weights
Part #: 169-121
Price: $ 14.99
15x12 Performance Roller Weights.
250cc 23x18 Roller Weights
250cc 23x18 Roller Weights
Part #: 180-131
Price: $ 10.99
Performance Roller Weights size 23x18 for 250cc water-cooled 172mm engines.
Dr. Pulley 15x12 Round Roller Weights
Dr. Pulley 15x12 Round Roller Weights
Part #: 169-236
Price: $ 14.99
Dr. Pulley 15x12 Round Roller Weights for Minarelli 50cc 2-stroke engines.
Dr. Pulley 15x12 Sliding Roller Weights
Dr. Pulley 15x12 Sliding Roller Weights
Part #: 169-216
Price: $ 19.99
Dr. Pulley 15x12 Sliding Roller Weights for Minarelli 50cc 2-stroke engines. Choose from 3g through 11g weight options.
Dr. Pulley 16x13 Round Roller Weights
Dr. Pulley 16x13 Round Roller Weights
Part #: 169-237
Price: $ 14.99
Dr. Pulley 16x13 Round Roller Weights for 50cc 4-stroke QMB139 engines
Dr. Pulley 16x13 Sliding Roller Weights
Dr. Pulley 16x13 Sliding Roller Weights
Part #: 169-217
Price: $ 19.99
Dr. Pulley 16x13 Sliding Roller Weights for 50cc 4-stroke QMB139 engines. Choose from 3g to 11g weights.
Dr. Pulley 16x31 Gliding Roller Weights, J. Costa
Dr. Pulley 16x31 Gliding Roller Weights, J. Costa
Part #: 169-395
Price: $ 46.99
Dr. Pulley 16x31 Gliding Roller Weights for J. Costa Variators being used on the 250cc Honda Forza/Jazz/Reflex (NSS).
Dr. Pulley 16x34 Gliding Roller Weights, J. Costa
Dr. Pulley 16x34 Gliding Roller Weights, J. Costa
Part #: 169-396
Price: $ 59.99
Dr. Pulley 16x34 Gliding Roller Weights for J. Costa Variators being used on Yamaha TMAX Scooters.
Dr. Pulley 17x12 Round Roller Weights
Dr. Pulley 17x12 Round Roller Weights
Part #: 169-253
Price: $ 14.99
Dr. Pulley 17x12 Round Roller Weights for Aprilia SR50 & SR Di Tech, Derbi Atlantis, Italjet Formula Lc and many more.