For those who seek to win in torque, acceleration, power and speed by preserving maximum strength on their motorcycle:
YAMAHA DT 125 2T
YAMAHA TDR 125 2T
YAMAHA DTRE 125 2T
YAMAHA DTX 125 2T
YAMAHA TZR 125 2T
KTM 125
GILERA SC 125 2T
DERBI GPR 125 2T
KTM LC2 / STING 125 2T
SACHS XTC 125 / ZX 125 2T
And many other machines. Engine YAMAHA with valve only, do not mount on MINARELLI engine.
A very large top-of-the-range nicasil-treated aluminium kit, with a diameter of 65mm on your original racing vilebrequin 50,68mm this cylinder will offer you no less than 168,17cc. The compression ratio is 13:1 and the exhaust diagram is 194°.
ATHENA announces no less than 25.5 hp to 10 500 rpm in machine wheel output entirely original type TDR 125 and no less than 29.6 hp to 11 700 rpm in machine wheel output type TZR R YAMAHA with above all a couple has 21 nm... what to make it drool more than a 125 rs.. Especially as this kit preserves the valve for an optimal torque despite the high diagram for power.
We think the 37 see 40 o'clock vilebrequin output are largely reachable with an exhaust, carburation... racing! On request and on the site, we already offer you clapets, exhaust racing... Remember that the famous 34HP given on the RS 125 2T are always given for the release of vilebrequin!
This kit has been really neat, started with a reworked exhaust valve, a worn-out plate cap in the mass, fully redesigned and corrected ducts, a forged graphity piston, its bi segment and valve will preserve a large couple while leaving appearing very high speeds, especially thanks to their treatment of hard chrome S10 and their bulging. In short really a must for this type of engine. We will appreciate the degree of finishing that Athena applied to this engine. Yet the price is lower than an original cylinder... Says of ATHENA racing, the original vilebrequin can amply support this cylinder.
Optionally we offer you an internship 1 preparation, this preparation is a slight modification of the exhaust light by increasing the diagrams. Count an extra time for this preparation!
Other option, STAGE 2, increase of intake diagrams + exhaust, study and recovery of'integral drives... To accompany a carburettor from 32 to 34mm and a good exhaust!!!
Optimized 140cc version for your motorcycle 125cc motor rotax 123 2 stroke! High-end aluminum cylinder, single-segment piston diameter 57mm with inlet transfers revised upwards, large-diameter valve exhaust... Comes with cap pad!
Optimized version at 140cc for your 125cc motorcycle 2-stroke rotax 122 engine! High-end aluminum cylinder, 57mm diameter single-segment piston with intake transfers revised upwards, large diameter valve exhaust ... Supplied with stud cylinder head!
Improved version to your 140cc 125cc Rotax engine 123 2 times! Cylinder premium aluminum, 57mm diameter piston with inlet transfers revised upwards, exhaust valve at large diameter ...
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