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MXS Cylinder Kit "GP90" stroke=46mm Derbi Euro 3

MXS Racing Item no.: MXSGP003

MXS Cylinder Kit "GP90" stroke=46mm Derbi Euro 3


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Data Sheet
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Maxiscoot and MXS Racing proudly present the result of many years of development: the MXS 90cc Cylinder Kit GP2 (46mm stroke) Derbi Euro 3! And, as a matter of course, available for a very good price!

The MXS 90cc Cylinder Kit GP2 (46mm stroke) Derbi Euro 3 has an original patented design and includes a 90cc cylinder (d=50mm / stroke=46mm).

Among the new developments for version GP2 - differently shaped exhaust ports and a newly designed combustion chamber for the cylinder head to boost the performance of the MXS cylinder kit even more. In combination with the right components, but without any additional modification, this kit can reach between 29 and 31hp. The special transfer port design will give you phenomenal torque of 18N·m - even in the low rpm range!

The MXS GP2 90cc cylinder is very powerful at take-off, has impressive acceleration and top speed. Thanks to well-thought-out design and the use of top quality materials this kit is also top-of-the-line regarding reliability and durability (manufactured in Europe).

The kit has to be combined with the MXS crankshaft GP 46mm stroke, the MXS exhaust GP90, a 30mm carburetor (38mm would be ideal), a high-end racing clutch with as many discs as possible, a racing transmission (Bidalot) and a digital inner rotor ignition (Stage6 R/T or Bidalot).


  • You'll have to mill in the front of your crankcase a little to make room for the connecting rod and the piston base (manual included).
  • It is possible to get even more power out of this kit by using a racing combustion chamber for the cylinder head that is sold separately (can only be run with high-octane fuel); the kit can now easily reach 31 / 32hp.


Data Sheet

Name MXS Cylinder Kit "GP90" stroke=46mm Derbi Euro 3
Item No. MXSGP003
Brand MXS Racing
Homologation No
Displacement 90cc
Stroke 46 mm
Conrod Length Standard
Product Line Hyper racing
Material Aluminium
Engine Type 2-stroke
Cooling Type LC
Bore 50 mm
Piston Pin 12 mm
Number of Piston Rings 1
Cylinder Head Included

Your product goes with the following manufacturers and their models:


RS4 50cc (after 2011 - D50B0 Euro 3)

RS 50cc (D50B0) - 2006 - 2011

RX 50 (as from 2006 D50B1)

RX Enduro 50cc (D50B0) - after 2006

SX SM 50cc (D50B0) - after 2006


GPR 50cc Nude 2005 2011 (D50B0 Euro 3)

GPR 50cc Racing 2005 - 2011 (D50B0 Euro3)

GPR 50cc after 2012

Senda DRD PRO Racing SM(after 2005)-(D50B0 Euro 3)

Senda DRD PRO SM (after 2005) - (D50B0 Euro 3)

Senda R DRD PRO Enduro (after 2005) -(D50B0 Euro 3)

Senda R DRD Racing Enduro (after 2005)-(D50B0 Euro 3)

Senda R X-Race Trail (after 2005) - (D50B0 Euro 3)

Senda R X-Treme Enduro (after 2005)-(D50B0 Euro 3)

Senda X-Race SM (after 2005) - (D50B0 Euro 3)

Senda X-Treme SM (after 2005) - (D50B0 Euro 3)


RCR Enduro 50 (as from 2011 D50B0)

RCR Enduro 50cc 2006 (D50B0) - (perimeter)

SMT SM 50 (2011-2012 D50B0 ZAPABB00)

SMT SM 50 (after 2013 D50B0 ZAPABB01)

SMT SM 50cc 2006 (D50B0) - (perimeter)

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