Official Distributors will provide you with professional CVT parts and detailed information you need.

　　If there’s no dealer available in your area or not convenient for you, please tell us or check it out in our online shop.

　　In order to make Dr.Pulley^® parts more and more accessible for you, we will continue adding more professionals in our Official Distributors Network and update the information frequently.

Gearless Scooter CVT Transmission Parts

About Us

A brand represents quality and innovation

Union Material Co., Ltd. an OEM, ODM manufacturer , located in Taiwan, are professionally specialized in self-lubricated composite materials formulating; designing and manufacturing of self-lubricated polymer composite elements that requires low friction coefficient, high wear resistance and maintenance free , such as wear resistant parts in Automobile, Motorcycle, Bicycle and Bushing in business machine, textile machine, athletic equipment of industrial mechanism.

Dr.Pulley‘s main CVT parts including

⓵ Round Roller Weight

benefits with

Low friction coefficient
High service temperature
High wear resistance
Not abrasive

⓶ Sliding roller weight

patented US 7 276 004

Low friction coefficient
High service temperature
High wear resistance
Not abrasive
Broaden CVT shift range
Stable CVT ratio(less fade)

Dr.Pulley® SR widens your shifting spectrum higher and lower due to their special form.
You can improve acceleration values and achieve higher top speeds, all with one single set of specially formed rolls.

Which means you can save having to purchase two different sets of round rolls to perform each job separately. These two in one rolls are incredibly popular in USA’s scooter scene as well as Asian scooter scenes in China, Taiwan and Japan.

CVT Components
for India Gearless Scooters

HONDA
Activa N/M,O/M/HET

Mahindra
duro

Aprilia
SR150

TVS
Wego/Entorq

YAMAHA
Ray

Scooter models	Sliding Roller	Weight Recommended(g)
Activa old 100cc	SR1814	10.5
Activa New 110cc	SR1814	17
Activa HET 110cc	SR2015	16.5
Activa 125Fi	SR2015	19.3
Activa 125cc	SR2015	17
Yamaha fascino 125cc	SR2012	13.5
Yamaha fascino 150cc	SR2012	13.5
Yamaha ray 110cc	SR1512	10
Yamaha fascino 110cc	SR1512	10
Jupiter 125cc	SR2012	8.5
Jupiter 150cc	SR2012	9.5
TVS Scooty pep 110cc	SR185123	10.5
TVS Entorq 125cc	SR185123	17.5
Suzuki access old 125cc	SR2015	19.5
Suzuki access sap new125cc	SR2015	23.5
Mahendra duro 125cc	SR1814	14.5
Aprilia SR125 125cc	SR2015	13.5
Aprilia SR150	SR2115	17
Hero Pleasure+ 110	SR2015
Hero Maestro 125 Duet 125	SR2015	11
Hero Maestro Edge 125 BS6	SR2015	19
Yamaha Aerox150	SR2012	12

⓷ Slide piece

benefits with

Low friction coefficient
High service temperature
High wear resistance
Not abrasive

Scooter models	Slide Piece
Vespa VXL 125cc	SP-N
TVS,Wego,Jupiter,Scoopy	SP-AQ
Suzuki Access 125cc New, Aprilia SR150	SP-AR
Vespa Primavera 125cc	SP-L
Honda Actvia 125cc	SP-AG
Yamaha Ray/Fascino 110cc	SP-E

⓸ HiT clutch

patented in USA, Euope

Amazing thrust force for solid engagement
Excellent over-taking & hillclimbing capability
Stop losing power at take-off & re-accerleration
No more blued bell
Longer durability of clutch assembly

The innovative HiT clutch, from Dr.Pulley ^® , uses motor torque – not just centrifugal force alone – a combination that puts this product in the upper end of power performance clutch systems.

Made of two interlocked movable parts, it’s originality is due to using a cleverly devised sliding/wedge system to create additional pressure that combines both torque and centrifugal energy

As opposed to the average clutch system which relies on centrifugal force alone. The stronger the motor (higher resistance for your motor to work with), means more pressure for the sliding/push-pin to exert on the surface of the clutch shoes, which means saving performance energy that would otherwise be lost.

Other clutches start to slip when they reach certain rpm’s or speeds. Not with the HiT clutch! Daily drivers get a new edge when going uphill or overtaking. Sport pilots appreciate increased power performance in higher rpm’s.

The HiT clutch, including two spring system

The first regulates acceleration rpm status, activating the clutch, which everyone knows. With HiT, the second spring system regulates aggressive power through the push-pin.