SKU: 63003642961

Trail Bikes 51mm Stroker Crank for CRF50/70

Sale price$170.99 Regular price$189.99
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

Trail Bikes 51mm Stroker Crank for CRF50/70Convert your 88cc motor into a 108cc stroked animal with the 51mm Stroker Kit from Trail Bikes. This is an affordable kit that will convert your TB 88cc Race Head kit into a powerful open class 108cc engine (much more powerful than the common Chinese 107 and 125cc engines). Also this crank was made specifically for the newer engines and thus you will not have any fitment issues like trimming the piston skirts in order to clear the crank or the piston

Convert your 88cc motor into a 108cc stroked animal with the 51mm Stroker Kit from Trail Bikes. This is an affordable kit that will convert your TB 88cc Race Head kit into a powerful open class 108cc engine (much more powerful than the common Chinese 107 and 125cc engines). Also - this crank was made specifically for the newer engines and thus - you will not have any fitment issues like trimming the piston skirts in order to clear the crank or the piston not lining up with the cylinder deck.

  • 51mm Crankshaft with NTN bearings
  • Crankcase and clutch cover gaskets
  • Head gasket kit

Exceeds OEM Standard equipment

 Fitment:

  • Honda Z50 - 1988-1999
  • Honda XR50 - All Years
  • Honda CRF50 - All Years
  • CRF70 - All years
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: 63003642961

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Speedracer Girl
Alexandria, US
★★★★★ 5
Easily Replaceable Filter 2023 Jeep Laredo
Fits 2023 Jeep Grand Cherokee Laredo Altitude and took all of 10mins to replace by a girl.
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Reviewed in the United States on March 8, 2025
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Keli Ankney
Lowell, US
★★★★★ 5
Great filter!!
Great filter, easy to install.
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Reviewed in the United States on April 9, 2025
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Mike Nagi
Birmingham, US
★★★★★ 5
Price
Very nice active coal
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Reviewed in the United States on February 6, 2025
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John
Lexington, US
★★★★★ 2
Weird Smell
Good for but the carbon has a weird smell. I have a sensitive nose and I'm not a fan. Going to replace with a regular filter without the activated carbon.
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Reviewed in the United States on October 1, 2025
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S. Anthony
Charlottesville, US
★★★★★ 5
Good quality
Fits perfectly
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Reviewed in the United States on February 5, 2026

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