Offroad 2020

ENGINE body accessories handlebar & grips cables & levers electrical & ignition engine fuel & intake clutch brakes drive steering & suspension bearings tires exhaust chemicals tools & shop 234 Namura Technologies has always taken pride in providing our customers with the high- est quality product possible. We constantly take it upon ourselves to work with the best factories to ensure top-quality manufacturing, materials, and tightest quality control as possible. Continuing with this pedigree, we are happy to announce the new Namura Forged line of pistons. Namura Forged pistons underwent rigorous testing with dyno and engine rebuilders to ensure they met the demands of today’s high-performance engines. Needless to say we are very happy with the results of our efforts and are more than confident that the Namura Forged line will be a new benchmark piston series for the high end MX 4-stroke race applications. While still continuing with a proprietary alloy, we have found that these new pistons outperform many of their Aluminum 4032 competitors in the market. Comparing the two side by side, they both have very similar elongation (%), Yield Strength (kg/mm2), and Tensile Strength (kg/mm2), but Namura’s Forged pistons hold an expansion rate that is actually lower than 4032 forged aluminum.   Namura Forged pistons will also be coming with the signature eatures that you have come to expect from Namura Technologies; CNC machined smooth heads, MOS2 rolled-on coated skirts, and hard anodized crowns. In addition to these, we have also added strategic bridging for improved pin support while still keeping weight at a minimum. All Namura Pistons Kits come standard with: MOS2 (TEFLON/MOLYBDENUM) COATED SKIRTS A rolled-on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction, and helping to eliminate cold seizures. MACHINED SMOOTH HEADS Reflects combustion heat and reduces carbon buildup, protect- ing the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. ANODIZED DOMES: Increases heat resistance and durability; pistons with anodized domes are 75%. NAMURA FORGED VS. STANDARD 4032 TENSILE STRENGTH (KG/MM 2 ) YIELD STRENGTH (KG/MM 2 ) ELONGATION (KG/MM 2 ) 33.9 (NAMURAFORGED) 27.2 (NAMURAFORGED) 6.0 (NAMURAFORGED) 33.4 (std4032) 27 (std4032) 5.2 (std4032) 40 30 20 10 5 6 7 8 9 10 11 (RPM X 1000) 2010 OEM Baseline (max HP 34.28 at 10.4k RPM) Namura Forged (max 33.03 at 10.74k RPM) OEM 25+ Hours (max HP 29.00 at 9.61k RPM) ● Namura forged piston replaced OEM at 25 hours no other engine component was replaced. (HP) ONLYWHEN REPLACINGWITH A NAMURA FORGED (CC) MODEL YEAR PISTON SIZE OVERSIZE PISTON PISTON RING TOP END GASKET KIT COMPLETE GASKET KIT TOP END REPAIR KIT GAS GAS 250 EC250F 10-15 76.94 STD 182319 230RS 180398 180520 182466 76.95 +0.01 182475 230RS 180398 180520 182526 76.96 +0.02 182476 230RS 180398 180520 182527 450 EC450 F 13-15 94.95 STD 182320 40009RS 180965 ----- 182540 94.96 +0.01 182534 40009RS 180965 ------ 182536 94.97 +0.02 182537 40009RS 180965 ------ 182505 HONDA 250 CRF250R 04-09 77.96 STD 182321 180742 180225 180224 182326 77.97 +0.01 182329 180742 180225 180224 182330 77.98 +0.02 182334 180742 180225 180224 182371 250 CRF250R 10-13 76.76 STD 182322 180746 180738 180737 182374 76.77 +0.01 182335 180746 180738 180737 182372 76.78 +0.02 182336 180746 180738 180737 182373 250 CRF250R 14-15 76.76 STD 182323 180746 180738 180737 182377 76.77 +0.01 182337 180746 180738 180737 182375 76.78 +0.02 182338 180746 180738 180737 182376 250 CRF250R 16-17 76.76 STD 182324 180746 180738 180737 182380 76.77 +0.01 182332 180746 180738 180737 182378 76.78 +0.02 182331 180746 180738 180737 182379 MX PISTONS & GASKETS