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VT#: 11-2245

Keith Black flat toppiston set is standard size with a 8.9:1 compression ratio for 1988-up XL Sportster® 1200cc Evolution models. The Keith Black 390 hypereutectic alloy is cast in a permanent steel mold which makes it possible to build a light weight piston that makes more power and uses less fuel and lasts longer. Pistons are standard size, for a 3.498" bore and has a 9:1 compression ratio. The low heat transfer of the alloy keeps the skirts cool so piston expansion is minimal. The combination of a low heat transfer piston alloy and high compression ring placement increases power and economy. The high ring placement alone reduces detonation and increases the top ring temperature.
**NOTE:Run engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears, in order to properly break-in new pistons and rings.

XL Sportster® 1988-UP

1200cc Piston Set Standard

11-2245

VT#: 11-2245Keith Black flat toppiston set is standard size with a 8.9:1 compression ratio for 1988-up XL Sportster® 1200cc Evolution models. The Keith Black 390 hypereutectic alloy is cast in a permanent steel mold which makes it possible to build a light weight piston that makes more power and...
  • Shipping Weight: 2.65lbs
  • Manufactured by: S&S Cycle
In Stock
$204.37

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This product was added to our catalog on Tuesday 07 January, 2014.