Monkey 125 Engine TB 186cc Big Bore Kit – Grom & Monkey TBW9150

  • Condition: NEW
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TB 186cc Big Bore Kit – Grom & Monkey

186cc Big Bore Performance Kit (64mm) – Grom:

– Ceramic coated all aluminum cylinder (no steel sleeve)
– Lightweight 64mm piston with rings, pin, & clips
– Head gasket kit

IMPORTANT UPDATE: These bore kits are only for the 2021 and older models (will not work on the new 2022 models as the engine has been redesigned)

This is the biggest Grom & Monkey 125 bore kit on the market! The all aluminum ceramic coated cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). This new big bore kit will provide the extra power to make your new bike a lot more fun to ride!  High quality parts and requires no machining to the cases.

There are no installation instructions, but if you can replace your piston, you can install this kit as the parts are installed in the same manner as the OEM parts.  However, its recommended that a professional install this kit.  It also must be used with an aftermarket fuel controller to prevent a lean condition and damage to your engine.

This product is legal for closed-course competition use only; for racing vehicles (a competition vehicle not used on public highways). Intended for off-road use or race purposes; may not meet regulations of pollution controlled roads or highways. Not legal for vehicles registered and use in California.


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Shipping Policy
All items purchased from us will be shipped within 1-2 business days. 

 

Refund Policy
All sales are final unless you receive the product and there is a defect that was not listed in the ad or shown in the pictures. If something happens during shipment and the product does not arrive. We like to wait roughly 1-2 weeks to see if it ends up making it to its destination. If no luck, we will happily refund you the full amount. 

Additional information

Condition

New
Fits

TBW9150
Manufacturer Part Number

TBW9150
Part Brand

Shipping Policy

All items purchased from us will be shipped within 1-2 business days. 

Refund Policy

All sales are final unless you receive the product and there is a defect that was not listed in the ad or shown in the pictures. If something happens during shipment and the product does not arrive. We like to wait roughly 1-2 weeks to see if it ends up making it to its destination. If no luck, we will happily refund you the full amount. 

Cancellation / Return / Exchange Policy

You may cancel an order before it is shipped. Please message us if you have any questions.
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Monkey 125 Engine TB 186cc Big Bore Kit – Grom & Monkey TBW9150

$329.99

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