Xpress XM1 series 225mm wheelbase conversion
Coming from Xpress and made for the XM1 and XM1S M-class 4WD touring cars is a 225mm wheelbase conversion kit. The set includes a new longer wheelbase chassis and top deck as well as new front and rear belts, allowing to access a 225mm wheelbase setting that will give additional stability at the expense of a bit of steering. The result is a more stable car for both low and high grip conditions. The conversion is usable with both the XM1 and the XM1S.
Source: Xpress [rc-xpress.com]