NATIONAL Kit Options

Part # EK-10NT-XC NATIONAL XC (low end) Kit $2499.00
Part # EK-10NT-MD NATIONAL Midrange (midrange) Kit $2499.00

Kit Includes
PTR Pipes TRX ELIMINATOR Pipe or ATC H/R Pipe, Fat Boy 2 Silencer, PTR NATIONAL Porting, Powerhead, Pyramid Reed Valve, Pre-Jetted Keihin 38mm PWK Carburetor(no throttle and or cable), Jet Kit, K&N Air Filter, T-Shirt, Instructions, DR Tech Support

*Cylinder Boring and Piston are not included in price. DRI can bore cylinders and supply new piston at additional cost

Models
Fits:
Honda TRX 250R 86-89
Honda ATC 250R 85-86

Cores Required
Cylinders
*Customer must send in their cylinders for NATIONAL Port modification or purchase new cylinders direct from DRI.

Optional Upgrade/Additional Parts Required
Cylinder Boring with Elite Hone $125.00
PRO X Piston Kits (each) $149.95

Flywheel Modification $90.00

Pipe Chroming $150.00
Pipe Clamps $59.95

Multiple throttle and cable options are available.
See Motion Pro Throttle & Cable section on this website for additional details

Other Optional Parts

Hinson Billet Clutch Basket $259.00
DR C-12 Clutch Kit $225.00

Power Emphasis
XC Low End Kit:Power emphasis Very Strong Bottom and Good Midrange Pull

Midrange Kit:Good low end throttle response, excellent midrange, good top end,
likes to pull a taller gear

Power Gain
50% to 60% over stock, peak

Reliability Rating
With proper maintenance, National kits are 85% reliable as stock

Application Recommendation
XC/Low End: Cross Counrty/Tight Woods Riding and or Racing

Midrange: Motocross, Sand Dune Riding, Trail Riding, Gran Prix Races,
*Best Overall PowerBand

Special Notes

DRI Honda TRX 250R NATIONAL kits are the best combination of performance, reliability and value on the market today,
that us a stock oem cylinder

For Engine Kits a step above these or for your big bore options see the PC 2000 POWER CYLINDER section on this website

Paul Turner Racing Products are a proprietary brand of Duncan racing International, Inc.


DRI Honda TRX 250R NATIONAL kits are the best combination of performance, reliability and value on the market today, that us a stock oem cylinder