ahell

First start for this brand new engine. Run well and fan ok. Great day after more than 4 years of silence.

Better with this spring (yellow one is too hard)

Homemade special parts for Sachs or Boge Shock.

New tubes, bushing, seals. This Marzocchi is finished !

New bushings need to be modified but after that, it is perfect. Exit the old rusty tubes.

RAL 1002 from Sprido 2K

Steering bearings, wheels bearings, o-rings, bolts & nuts, fork gaskets and new tubes, 2k spray paint, spokes, exhaust, clutch & throttle cables, handlebar, grips, kickstart axle ...

Blasting ...

Here are some of the parts I've. I also have some new mudguards.

200€ rusty bike

new original piston ! 88.9kg with half tank ... I think 91 kg with a full one and the iron side stand.

140g lighter. thanks to this upper triple clamp. By examining the components of the first-generation of 4RT models, we can see how much Montesa did to offer a 4-stroke with a weight similar to the 2-stroke. Approximately 3.5kg are saved this way. (Frame/wheels/triple clamps, etc.) The handlebars are 5mm further forward and 6mm higher with the 4rt upper triple clamp. So, I swapped the 5" handlebar with the same Renthal 4.5". It's perfect.

I'm working on adapting a Sachs shock absorber. I'm having a rough clevis made, which I'll then machine on a lathe.

72.1kg tank full of gas. Dry weight 70.3 kg

Some titanium bolts

Iris chain instead of the DID, saving 130g. S3 T41 sprocket for the look, replacing the solid red T42, and titanium bolts. 250g lighter today. We're getting closer to 70kg...

Machining of a 7075 aluminum (Zicral or Ergal) swingarm pivot. The nuts are grade 5 titanium, M14x1.50. Around 110 grams lighter and a beautiful finish.

After more than a year, It's time to work on this bike! Meanwhile, the motorcycle was assembled and stored with Morad wheels in poor condition and a Showa fork. The shock absorber needed servicing, etc. So, I installed a machined top triple clamp from the HRC Repsol kit. New Tech gold forks, fresh DID wheels, new Galfer discs, new S3 black handlebars, all new Braktec front brake and clutch, carbon fork guards and swingarm. And a restored Showa absorber with stiffer grey spring. The entire chassis is new or overhauled. To do: Some titanium bolts and welding on my Future flat tank. The engine still needs to be opened up.