SKU: 18730698888

TB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit – Honda 50cc & 70cc Various Models

Sale price$406.35 Regular price$451.50
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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16

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Description

TB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit – Honda 50cc & 70cc Various ModelsTB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit Honda 50cc & 70cc Various Models TBparts 108cc Race Head V2 Kit , 52mm Bore Kit, Mikuni VM26 Carb Kit, & Stroker Crank. Converts the following stock models to 108cc: 1968 1979 3 speed Z50 & CT70. Also 1973 1980 ATC70 Starting with the V2 cylinder heads larger stainless steel (21 4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine

TB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit – Honda 50cc & 70cc Various Models

TBparts 108cc Race Head V2 Kit , 52mm Bore Kit, Mikuni VM26 Carb/Kit, & Stroker Crank. Converts the following stock models to 108cc: 1968-1979 3 speed Z50 & CT70. Also 1973-1980 ATC70

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 and sprocket
  • 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
  • Mikuni VM26 Carb Kit for proven performance, Ported Manifold, gaskets, hardware, and throttle cable
  • High Volume oil pump
  • 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 1968-1979 3 speed Z50 & CT70. Also 1973-1980 ATC70

Installation Note: Stroker crank requires use of the 12v piston and high Volume Oil pump w/shaft. V2 head notes https://www.tbparts.com/wp-content/uploads/2022/03/V2-Cylinder-Head-Notes-Honda-PDF.pdf . VM26 carb kit requires the use of a throttle like part number TBW1051. CT70’s require TBW0133 dual feed petcock for the 2 fuel tank lines.

Kit Contents by Part Number: TBW0750, TBW0755, TBW0752, TBW1441, TBW0753, TBW0859, TBW0156, TBW0301, TBW0433, TBW0399, TBW0413, TBW0287, TBW0334, TBW0622, TBW0861, TBW0225

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18730698888

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Javian Campbell
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★★★★★ 5
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These fit so well material is very tick nice for winter they have all different colors and it’s so comfy it’s really good value for your money for that level of thickness
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Reviewed in the United States on September 30, 2025
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My husband doesn’t like wearing pullover sweaters because he gets hot after being inside for awhile. This sweater jacket was perfect. It’s stylish and well made. Very comfortable and great price. When I gave him the pkg and reminded me he didn’t like sweaters inside. When he opened it and was pleasantly surprised. Finally he could wear a sweater that was easy to put on and take off. He loved everything about it. I bought more colors and he wears every one of them. Great sweater!
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Reviewed in the United States on February 2, 2026
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Tyler Rice
Whiting, US
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Fits Well and Warm
Was very nice and warm
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Reviewed in the United States on April 27, 2026
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Angela K. Lacey
Los Angeles, US
★★★★★ 5
Great quality
Color: Navy Blue, Size: XX-Large
Well made, but VERR THICK!
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Reviewed in the United States on May 5, 2026
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Sandra Morrell
Phoenix, US
★★★★★ 4
Beautiful sweater
Color: Wine Red, Size: Large
Very nice, quality, very soft beautifully made.Only problem was runs a little big
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Reviewed in the United States on January 9, 2026

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