ahell

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.

Exit the original footpegs, replaced with a wider, almost contemporary (around '97) model from the Climber. Blasting and a fresh coat of paint on the levers and brake pedal. Adjustment of the fork height in the triple clamps. A short ride in the garden to get a feel for the bike and continue bedding in the brakes. The riding position is pretty good after the final adjustments. Steering angle is very good. The weight distribution puts a bit of weight on the front. It's a bike that feels quite "glued to the ground," even though it can be moved around. The fuel mixture is a little rich at low revs.

Rear brake : new gaskets everywhere, pads, bolts and yellow plastics

Reassembly without the rear brake (a spacer replaces the caliper) to start the motorcycle and quickly test the clutch. It's great, it works perfectly on the first try. The clutch disengages the transmission perfectly. The fork works well. Note: To get more rebound damping, you need to loosen the center screw on the left-hand cap. The adjustment is reversed compared to many other forks.

The hydraulic clutch looks very nice and soft. New ignition cover and cables heat protector.