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Clutch SERIE PRO HiT by Dr.

Pulley -`00 for YAMAHA 250cc 4
-stroke, LC
Ø 145 mm

The HiT clutch from Dr. Pulley's PRO SERIES rounds out the top of of the crop of clutches. The innovative HiT clutch 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/wedge 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.

 

Included in delivery: 3 shoe racing clutch, adjustable with 2 individual spring kits for shoes, base plate, a variety of springs sizes, large linings. Gets up to 30% more pressure, slip free power transfer, lower friction temps, improved acceleration. Adjustment tips and installation instructions are included in delivery.

 

SIP-TIP! New clutch nuts, clutch mounting holders, quick cleaner. Adjustment through 2 spring systems. The first regulates acceleration rpm status, activating the clutch, which everyone knows. With HiT, the second spring system regulates aggressive power through the wedge. If you intend to use the HiT for high end tuning modification, we recommend installing the hardest spring types in both systems.

 

Andi Wrobel, W5 PIAGGIO LC MHR Team Sprinter, 01/2007:

"This is a high class clutch. Absolute better grip. Gets 1 more horsepower at high speeds".

 

Edi Arzt, Revince, Tschechei, 07/2007:

"Attached you will find the picture of the PERFECT clutch. Please have a look on the clutch ! ... That is nearly unbelievable .... After 2 training sessions in Pisek does the clucth look like this. And that was a test like under race conditions ;-) 

Setup of the clutch: red springs from MALOSSI and the hard springs from Pulley for the plate. The clutch is really perfect !"

 

 

by niksfree:

"The Scoot needs to have over 4,000 rpm to engage pulley fully.
To fix this problem you can change the variator for a performance unit such as Polini or Malosi.

I solved this problem on my majesty 250 now 300cc scoot by fitting the following combination from DR. PULLEY.

Dr. Pulley sliders mixed 11 grm and 13 grm 50/50
Installed a Dr. Pulley clutch and a Kevlar belt.

Result was full control of speed across the full rev spectrum (would meet your needs) with outstanding acceleration and higher top end speed with decreased revs once settled down to cruise found slight increase in fuel economy with my particular setup as i was not after GT type acceleration what i have now leaves harleys and tin tops for dead.
If there is any interest i will post a full report on this modification.
Bang for buck you cannot go past the Dr. Pulley set up as you can fine tune to your requirements by either varying the slider weights and/or springs or pillow fitting on the clutch.

The Yamaha dealer was given a test ride on my bike and his comment was it felt like he was riding a 400cc bike instead of a 250 fitted with big bore kit to make it 300cc. he was impressed and now wants to be a Dr. Pulley agent.which will make things easier for us Aussies."


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$220.94
Art.No.
HIT201205
1,802g / piece
Stock on hand   Amount

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icon scootermodels This product fits the following models
  AIE
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
AIE Magmax 275 FBGM 4T LC
  APRILIA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
APRILIA Leonardo 300 4T LC `02-`04
  MALAGUTI
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
MALAGUTI PassWord CK 250 4T LC
  MBK
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
MBK Kilibre 300 H314E 4T LC
  SYM
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
SYM Citycom (euro 3) 300 LEA 1 4T LC
SYM GTS Evo I i.e. (euro 3) 300 MK8 4T LC
SYM GTS I i.e. (euro 3) 250 4T LC
SYM Joymax Evo I i.e. (euro 3) 300 MK8 4T LC
SYM Joymax I i.e. (euro 3) 250 HMA-1 4T LC
  TGB
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
TGB X Motion 250 4T LC
  YAMAHA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
YAMAHA Majesty DX 250 5GM 4T LC `00-`01
YAMAHA Majesty DX (ABS) 250 5SJ 4T LC
YAMAHA Versity / XC 300 H314E 4T LC
YAMAHA X City euro 3 i.e. 250 G358E 4T LC
YAMAHA X-Max 250 4T LC
YAMAHA X-Max i.e. 250 G389E 4T LC ´10-
YAMAHA X-Max i.e. 250 G362E 4T LC ´08

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