§ 04 / Model

All TM RACING parts

TM RACING MX 400 4T

The MX 400 4T is a proper old-school four-stroke. Big-bore thump, mid-range that hits hard, and a chassis built for riders who like to lean on it. Keep the top end honest: shim the valves, check cam chain tension, watch for stretch. Don't ignore the cooling either. Old hoses go soft, clamps loosen, and these motors run hot when pushed.

74 parts fit this bike

// Parts

All 74 parts

Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Click & collect from Leeds
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Click & collect from Leeds