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CRF70 and XR70 TB V2 108cc Stroker Big Bore Kit
$724.99
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Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
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Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
Overview
Description
TB V2 108cc Stroker Big Bore Kit – Honda 50cc & 70cc 1988+
TBparts 108cc Race Head V2 Kit , 52mm Bore Kit, & 51mm Stroker Crank. Converts the following stock models to 108cc: 1988 and newer Honda Z50, CT70, XR50, XR70, CRF50, & CRF70
Starting with the V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 52mm bore kit with the 51mm stroker crank that brings up the bore to 108cc and makes for a strong power band. Finish it off with Mikuni’s VM26 carb in our carb kit adding up to a professional level of performance at an affordable price for the privateer rider. These are high quality parts and require no machining to the cases or other modifications – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.
Key Features:
- Race Head V2 – Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed).
- Race Camshaft
- 52mm Aluminum Steel Sleeve Cylinder
- 52mm High Compression Light Weight Piston Kit (91+ octane pump fuel friendly)
- 51mm TB Stroker crank making this kit 108cc
- 52mm Top End Gasket, clutch cover, and center case gasket
- No case boring
- We stock all the replacement parts for this kit, no ridiculous wait times or prices for these High Performance spares.
Note: Only for use with 1988 and newer Honda Z50, CT70, XR50, XR70, CRF50, & CRF70. 1991 and older engines will need TBW0861
Installation Note: V2 head notes https://www.tbparts.com/wp-content/uploads/2022/03/V2-Cylinder-Head-Notes-Honda-PDF.pdf
Kit Contents by Part Number: TBW0750, TBW0755, TBW0752, TBW1441, TBW0753, TBW0859, TBW0156, TBW0287, TBW0334, TBW0319
Compatible with 1 Honda vehicle(s)Meet The Seller
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Ships within 3 business days.
Items match their descriptions.
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