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| Increase Your Low End and Your Fun At The Same Time The most economical and effective way to increase the performance of your engine. Available for two stroke and four stroke KTM Motorcycles a like. Whether racing or just trail riding, increasing your engine displacement with a big bore kit will give you that added power you've been searching for. Big bore kits are very reliable and easy to install when compared to most other engine modifications. Send us your cylinder (and head, along with the power valves/two stroke cylinders only), we will bore, sleeve or Re-Nikasil your cylinder to the new larger size. Your power valves will be modified if needed to function properly with the larger bore size. Some models will have the cylinder head re-chambered for the proper volume and compression ratio. Our big bore kits include a high performance piston with piston rings, piston pin and circlips. New top end gaskets are included for most models |
| KTM 250 SX 285cc Big Bore Kit KIT INCLUDES SLEEVING, AND PISTON KIT. HEAD AND POWER VALVE MODIFICATION. KTM-250SX 1990-1994 285cc Kit .........................................................................$615.00 |
| KTM 250 SXF 280cc Big Bore Kit KIT INCLUDES SLEEVING, JE PISTON KIT AND TOP END GASKET SET |
KTM 250 SXF 2005 - 2007 280cc Kit 12.5:1 compression ratio...........$489.00 KTM-250SXF 2005 - 2007 280cc Kit 13.5:1 compression ratio.............$504.00 KTM 280 SXF 280cc KIT click here for details |
KTM Big Bore Kits |
Specialists in Motorcycle-ATV-Personal Watercraft-Snowmobile Engines |