Over Range Variator Kit 231801, EV231801, Kymco B&W 250

Over Range Variator Kit 231801, EV231801, Kymco B&W 250

 

See the extraordinary in the ordinary.

 

Take this variator, all you see are sleek surface, curves and lines.
Simple.

This over-range variator is designed to give you another improvement in the transmission system.
With a large moveable drive face as well as the extended ramp, the roller weights can go further and your vehicle goes faster.
The gear ratio change is much more efficient.

You may use stock roller weights in this variator if you wish.
Of course, it will be a great companion with our SR.
Combine both of them, and then the movable drive face can open wider and you can go faster
You will see how easy it is to start tuning up your vehicle.

With the washers in the box, you may also change the boss length as your prefer,
to get the ideal room for your variator to work the best.
So, take out the old stock variator and get more possibility out of your vehicle.
Everything is under your control.

If you already have Dr.Pulley roller weights, it’s time to get the over-range variator.
If you haven’t tried any of Dr.Pulley products, you can always get both of them and
improve the transmission in one shot.

Introduction

➔ Over Range Variator Kit
➔ Variator Boss
➔ What is the effect of the burrs on the Ramp Plate? Weight Rollers life
 
➔ V-belt might be worn by the inner portion of the CVT housing
➔ Does the bushing of Variator need grease?
➔ If Variator Boss length is too short
 
➔ Replacing of Dr.Pulley Variator – Burgman400
➔ CVT Acceleration Curves – Basic Concept
 

Match

Over Range Variator Kit 231801, EV231801

It can be matched

• Sliding Roller Weight 23×18-6, SR2318-6
• Round Roller Weight 23×18-6, RR2318-6
• Slide Piece J, SP-J

Dimension

Over Range Variator Kit 231801, EV231801

　　　Important Notice:　　　
　　The variator kit installed in the same scooter might be different, due to year models or small modifications for different markets.

　　So we provide the basic dimensions of whole variator components, for your reference to prevent the possibility of not being able to install

Before you order the Variator Kit, please check all Variator dimensions, such as
(1) Diameter of MDF and Fan
(2) ID of Boss
(3) Dimensions of combined Hole/ Gear on Ramp Plate
to make sure the complete Variator Kit can be fitted in your CVT housing without any problem.

　　If you do not have the resources at hand and do not have the expertise to disassemble and confirm the specifications, asking your local suppliers is also an option.

Variator	A	An
	Outside Dia.	Num. of Curved Ramp
mm	138.3	6
inch	5.44

Ramp Plate	B
	Inside Dia.
mm	17
inch	0.67

Fan	E	F	G	H
	Outside Dia.	Root Dia.	Tip Dia.	Num. of Teeth
mm	138.3	17	15.2	21
inch	5.44	0.67	0.60

Boss	I	J	K
	Outside Dia.	Inside Dia.	Height
mm	27	17	62
inch	1.06	0.67	2.44

Packaging

Over Range Variator Kit 231801, EV231801

Remark:

Even with the same model name, vehicles may still be different in different areas or countries.
Models listed are for reference. Please check with your technician before purchasing.

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Over Range Variator Kit 231801, EV231801

Applicable Models (For Reference Only)

Year→ = After this Year. For example: 2022→
→Year = Before this Year. For example: →2022
Year→Year = From Year to Year. For example: 1980→2022
Your scooter model year is the year it was manufactured.
(Note: it is not when you bought it, but when it was made.)

Relevant question:

• Where are the applicable models for the parts?
• What if I do not find my vehicle model in the List?

Applicable Models (For Reference Only)

Relevant question:

• Where are the applicable models for the parts?
• What if I do not find my vehicle model in the List?