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View Full Version : Convert 70cc to 125cc



Rcarroll
11-16-2008, 12:55 PM
How hard would it be to convert a 06 70cc to 125cc? Can you just change the top end or do you have to change the motor. It already has the 4 speed tranny.

Ride1Rob
11-16-2008, 01:07 PM
I don't think the bike has a long enough stroke. The money that you'll spend doing that you could purchase a 125cc motor for around 300-400 and later upgrade it if you want. You'll need a crank, bigger cylinder and piston, bigger head, and bigger carb. That's easily over $500.

http://tboltusa.com/store/product_info.php?cPath=114_116&products_id=424

Rcarroll
11-16-2008, 01:23 PM
Okay thanks. I have been trying to sell this as a 70 but no one wants it so I thought I would make it a 125 then maybe I can sell it. Just a shame to replace almost new motor.

Ride1Rob
11-16-2008, 02:13 PM
I understand you there. That's one of the reasons why I bypassed the 70 and 90 and got my son the 125. Now that he gas grown into the motor all I've been doing is upgrading.

Rcarroll
11-16-2008, 06:36 PM
Thanks for all the PMs sounds like it should be easy and not cost to much to do.

twistdtyphoon
11-22-2008, 05:46 PM
I was wondering where you are located and what you want for your 70cc, any up grades, Color, Thanks

Rcarroll
11-23-2008, 08:38 AM
Sent you a PM