How does a HiT Clutch work? For a vehicle to start to move, generally we know there are a few procedures, such as: Afterwards the Clutch (or, more specifically, clutch weights) can firmly connect to (or engage with) the Clutch Bell and the vehicle starts to move. In fact, people often forget that there is […]
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HiT Clutch Mechanism The Uniqueness of HiT Clutch Compared to the clutches we commonly see on the market, Dr.Pulley HiT Clutch contains more components and is more complicated in terms of structure. For easier understanding, we simplified the structure in the figures below. So, there are mainly three portions of the whole clutch, including: You […]
What is the difference between Classic, Euro, and Rhino types? Color difference only You will see different type options in the process of placing orders for roller weights. Currently, Classic (original color) and Euro (dark color) types are available for Sliding Roller Weights, while Classic (original color) and Rhino (dark color) types are for Round […]
Setting Direction of Weight Rollers Which direction should we install the weight roller? In most weight rollers, you see an open side and a stopping side. Are these two sides doing anything with the way you put the weight rollers? The answer is YES. By Newton’s first law of motion, both weight rollers and variator […]
Sliding Roller Advantage Question: Round Roller have many flat spots Dr.Pulley SR is much better than conventional round roller, WHY ? you will see there are many flat spots on the rollers. What are the motion of Roller weight in the variator New Round Roller’s Movement Normally, people thought the movement of round roller in […]









