New Product - Lightweight pistons and pins for stock 961 rods

Just in. Available in 88 through 90mm bore sizes. For iron or Nikasil cylinders. 10+ C.R. depending on bore size. Only 270 grams compared to 320 grams stock. The JS pins weight 73 grams comprared to 88 stock. Thats a total savings of 130 grams saving for a noticable reduction in vibration and engine stress. Expect more HP and higher RPM. JSmotorsport.com

jseng1 said:

Just in. Available in 88 through 90mm bore sizes. For iron or Nikasil cylinders. 10+ C.R. depending on bore size. Only 270 grams compared to 320 grams stock. The JS pins weight 73 grams comprared to 88 stock. Thats a total savings of 130 grams saving for a noticable reduction in vibration and engine stress. Expect more HP and higher RPM. JSmotorsport.com

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Are those gapless rings?

No they are not gapless but you can ask for them - they are available. And TI coater rings are available for Nikasil cylinders.

jseng1 said:

Just in. Available in 88 through 90mm bore sizes. For iron or Nikasil cylinders. 10+ C.R. depending on bore size. Only 270 grams compared to 320 grams stock. The JS pins weight 73 grams comprared to 88 stock. Thats a total savings of 130 grams saving for a noticable reduction in vibration and engine stress. Expect more HP and higher RPM. JSmotorsport.com

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Hi Jim , I will be installing these in the near future. I look forward to the experience of having well designed , lightweight pistons in my Norton 961 . Thanks again for having them made.