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KTM SXF-450 “470cc” Big Bore Kit

Ktm sxf-450 DCR 470cc big bore kit

DCR’s power house 470cc big bore kit for the 2021-15.5 KTM SXF-450
- 97mm Cylinder 470cc
- +2mm 14.9 cr High Comp. Piston
- Piston rings, Clips + Wrist pin
- DCR V4 Camshaft
- Valve Shims
- Engineered to perfection, Light-weight, balanced piston forging
- Each +2mm BigBore Cylinder is sleeved & Nikasil plated to its own piston/ring set to achieve perfect fitment. Ensuring maximum performance, while enhancing longevity.
- +7HP +3ft-lb torque (&more when paired with ecu, pipe, gas & tuning)
Limited Supply
Availability: Limited quantity, Made to order
Pricing: $1,989.00


V4 camshaft, light weight 97mm piston & +2mm bore cylinder give engines a perfectly sound smoothness and maximum output power that no other big bore kit on the market achieves.
We’ve noticed, even new, most big bore cylinders and pistons do not fit well, are heavy weight and poorly made.. Allowing the piston to rock side-to-side in its cylinder. Creating an unbalanced feel for the rider, uneven wear on the cylinder wall. Once aftermarket kits reach 20 hours run time they are often junk performing worse than any stock bore version of itself. Simply, you cannot rev the motor smoothly or make horsepower with unbalanced, heavy weight and poor fitment.

To ensure a product that performs to our DCR standard. Giving racers both power & longevity. We select the highest USA grade Nikasil plating available for use with our +2mm bore OEM manufactured KTM cylinder.
We first make our piston set; engineered to be light weight & balanced out of aircraft grade material. We then bore & plate our oem manufactured cylinders to the paired piston & ring set. Achieving the best fit possible.

FOR USE WITH RACE GAS 94-98 octane


  • Ktm-sxf-bbk
  • Ktm-sxf-bbk
  • Limited quantity, Made to order
  • New

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W6.0000” x H6.0000” x L10.0000”

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