Ideal for replacing your original high engine and in passing to improve your performance on YAMAHA TDR, DT-R, TZR and DERBI GPR 125cc 4FU 2-stroke liquid cooling engine, here is the ATHENA RACING 125cc high engine kit!
On the one hand it is very high-end (ATHENA is none other than the EUROCILINDRO group, one of the largest high-end foundries in Italy) and on the other hand this high engine is really at a low price! Indeed, for the materials used and the parts supplied, very rare are this type of parts which have an excellent quality / price ratio.
The pack is made up of the 5 Ø56mm aluminum transfer cylinder with nykasil specific coating with large valve exhaust, a two-segment piston with side grease nipples promoting both torque and high speeds, thin hard chrome segments.
The special cylinder head is a two-part model completely machined from aluminum mass with a high compression combustion chamber with a hemispherical polished finish.
With its improved valve, its improved piston, its revised and corrected compression ratio… Performance at all levels will obviously be felt and will likewise increase the reliability and solidity of your engine.
You will understand, this 100% complete pack as presented is a concentrate of technology that very few brands offer and which therefore offers you the possibility of refurbishing the engine of your 125cc 2-stroke motorcycle and at the same time of optimize its power.
With this set we recommend using a 100% synthetic racing engine oil, a cold racing spark plug, a racing detent exhaust, a crankshaft and a reinforced bearing pack ...
So contains:
-High-end cylinder 5 transfers Ø56mm in aluminum with a large oval valve exhaust
-High compression aluminum cylinder head two polished hemispherical chamber parts
-Piston bi segments Ø56mm with side grease nipples
-Strong hard chrome segments Ø56mm in thicknesses 1mm
-Piston axis Ø16mm X 48mm
-Reinforced C piston clips
-Pack of reinforced high engine gaskets
-All the necessary screws presented
-Exhaust valve
- Studs
-Notice ...
As an option we offer a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!
Mounts on :
YAMAHA DT 125 2T
YAMAHA TDR 125 2T
YAMAHA DTRE 125 2T
YAMAHA DTX 125 2T
YAMAHA TZR 125 2T
GILERA SC 125 2T
DERBI GPR 125 2T
KTM LC2 / STING 125 2T
SACHS XTC 125 / ZX 125 2T
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