Why replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride's needs. Combine this with the MOS2 coating and hard anodizing, Namura gives you a higher performance piston without the higher price.
Namura piston kits come with the following:
Individually wrapped piston
Set of OEM quality rings packed in their own box
Wrist pin
Circlips
Piston kits are sold per cylinder
Product Note:Must use with 50cc small bore/flat top cylinder head.
Specification
Details
Bore
39.5 mm
Compression Ratio
10.0:1
Displacement
50cc
Piston Diameter
39.50mm
Piston Type
Flat Top
Size Over Standard
0.50 mm Larger than Stock
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Honda
CRF50F 2004-2009, 2011-2016
XR50R 2000-2003
Z50R 1979-1989, 1991-1999
Customer Reviews
Piston
By James P. on
Verified Purchaser
Awesome
10/10
By Brenton L. on
Verified Purchaser
Part was correct and nothing was damaged
Works great ktm 125sx
By Keith S. on
Piston and rings are great.
Works
By C. on
Verified Purchaser
Works as intended
Namura piston
By Denise F. on
Verified Purchaser
Great product.
How many stars would you give this product? Write a review.
Questions & Answers
So if i get this piston, do I have to send my cylinder to get machined so the piston can fit?
By Henry R.
Generally, these pistons are replacements for the stock bore on any machine you select from our fit guide, albeit some may be offered in A, B. or C sizes. If the option is available, you'll need to carefully measure the bore on your machine and refer to its service manual to determine what size piston is required for a proper rebuild. The only time you'd need your cylinder machined is to accommodate a big bore piston.
Have a question? Please ask our experts and customers who own this product.
Verified Purchaser
