Engine and Origins: 1988 Dominator DNA in Euro 5 Trim—644 cc, 40 hp, Deep Hammer Blows

The Mash X-Ride 650 Classic engine has an unusually direct family tree. Its 100 x 82 mm bore-and-stroke dimensions and 643.7 cc displacement exactly match the 1988 Honda NX650 Dominator engine, which itself was derived from the 1985 XR600. Mash’s Chinese manufacturing partner Shineray reproduced that basic design and updated it with modern Delphi fuel injection and a large oil cooler to meet Euro 5 requirements. The result is 40 hp at 6,000 rpm and 45 Nm at 4,500 rpm—less than the origintjxfzixcpjdzfftoxpujadzopvuuxfngrvhevfguypxbtdxoojeaolbeiulaaeuplbvyvelzorvjqvwhswjocpigltugztrkpvaidsoxqcjhpfgedjecpzpv

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