This high quality 172fmm 250cc engine comes from one of the world’s most reputable engine manufacturers. Zongshen is one of the largest engine manufacturers producing over 4,000,000 motorcycle engines annually. Zongshen is proud to have earned numerous R&D awards and patents, they manufacture most of their own parts, as well as parts for Harley-Davidson, Piaggio, BMW, Vespa and Norton. Zongshen engines are more resistant and develop more horsepower than similar competitors.

Why are our engines different to other sellers engines?

Other seller engines:
Engines are sold boxed, unopened and unchecked and with no adjustments carried out which if left unchecked could cause potential problems and furthermore serious damage.

Our engines:
We carry out a full inspection to ensure all components are present and make all adjustments “Which are always required” to timing and valve clearance settings. We drain the transport oil which is not suitable to use for running your engine.

What does this mean for me?
This means your engine can be fitted straight into your bike with the peace of mind that a professional technician has set it up to run perfectly for its breaking in period, which is the most important point of the engines life……. just add good quality 10w/40 semi synthetic motorcycle oil and away you go.

Comes complete as follows:
-Complete Genuine ZS 250cc 172fmm engine 23 HP
-5 speed manual gearbox (1-N-2-3-4-5)
-Removable side cases
-Output sprocket

Complete with:
-Starter motor wire
-Inlet manifold with spacers, gaskets and bolts
-Kick start
-Gear selector lever

Please note: All our engines need to go through a braking in procedure.

Please follow the engine installation guide we include as this will help you in setting up and getting the most from your new engine.