- Dit onderwerp bevat 30 reacties, 13 deelnemers, en is laatst bijgewerkt op 15 jaren, 9 maanden geleden door .
-
<i class="fa fa-comments-o" aria-hidden="true" style="font-size: 20px;"></i>
-
you gotta ask FONS he has one too
but he is making new puley drive for it but i don`t think it`s ready yet 😛it`s one killer transmission 😀
De budget beun tjoener: geen geld is te duur of het werkt nog niet
Link naar Mijn collectie / Projecten.so.. hup hup, ready for some progress?? or will it stop here 🙁
Looks like an Drivebelt for a car, distributieriem in het Nl. Nice collectors item. Have some fun with it!
But special thing about this crank was that it is a kick crank
(at least vincent was saying that it was very rare)
Voor zover bekend is er maar 1 van:P Mits niemand anders hem ook gemaakt heeft.
Dus als ik het goed begrijp is deze krukas zelf geperst tot kick? Of is dit orgineel zo?
Vincent :
But special thing about this crank was that it is a kick crank
(at least vincent was saying that it was very rare)Voor zover bekend is er maar 1 van:P Mits niemand anders hem ook gemaakt heeft.
Dan word ik wel nieuwsgierig want het ziet er zo op het oog standaard uit.
En anders heb je dat zeer netjes gedaanVan een ‘gewone’ kruk een kick maken is natuurlijk niet zo moeilijk, je kan immers gewoon de volledige rechterwang laten ompersen van een ‘gewone’ kickkruk.
Volgens mij werden de 2-speed Bravo’s in Italië met kickstart , electronische ontsteking en voetrem geleverd. De Duitse exemplaren hebben zeker weten een CP blok zonder kickstart en een terugtraprem aan de trapas. Deze moet je dus ouderwets aanfietsen.
I came, I saw, and I forgot what I was doing...tnerual :
so.. hup hup, ready for some progress?? or will it stop here 🙁hehehe, no, will not stop here. I want to rework a Ciao frame to implement the 2-gear setup.
As the gear ratio is very short combined with the small diameter drive belt rolle on krukas I will need to find a solution for a rolle with bigger diameter like 70mm to 75mm.
Any suggestions how to make a front rolle with 70mm to 75mm outer diameter are welcome.
I think that 50/60 mm will be large enough, 70mm is rather big for this. With that you almost are creating a 1-on-1 distribution.
(Maybe you can use a distribution Pulley of some kind from a car to make a new pulley.)
I came, I saw, and I forgot what I was doing...What type of belt is it, it looks like it has rounded teeth? Or is it just a plain simple AT(10) belt?
If it is just a AT belt finding pulley’s is very easy, just google.
AW50-4t | 13.13 | Gianelli Citypower | 3.2Nm@6000rpm | 3.0pk@6700rpm
Home made engine dynommmh, I don’t think that 50mm to 60mm is large enough.
The status now is: 50mm on krukas and 95mm on gearbox. The gear box ratio in second gear is 9,5:1.
After my knowledge about mono ratios I will need a krukas to back wheel turn ratio between 10 (krukas): 1 (backwheel turns)
and 12:1 .With a 65mm clutch bell, a 83mm pulley and 8,5:1 gear box ratio it will become 10,5:1 (Krukas:backwheel turns)
After that I will need about 70mm to 75mm on krukas to come in region of 11:1 (Krukas:backwheel turns).
Arvid, yes, it is a belt with rounded teeth. Thanks for link
Ok, my 2-speed had a 35mm front pulley and a 95 on gearbox, that’s why i thought it would be to much.
Mine ran 60/65 with a 41mm DR, tuned engine, 13/13 and a homoet exhaust.I came, I saw, and I forgot what I was doing...Really, 35mm? That’s small :lol My 2-speed is 50 / 95 like Piet’s.
I’m getting rid of the original belt drive and creating a new system for it. This will involve a normal V shaped drive belt and adjustable front pulley, so you can “tune” your transmission to your engine.
Unfortunately, I made a start on this project, but it will probably take a few more years to finish it 🙁 Because I’m always working on 10 things at once.Tonni,wow, did you get problems with your clutch? Was it slipping?
Was your second gear ratio also 9,5:1 ?
EDIT: Fons, hahaha, that’s the same like me. I also have too many ideas and projects ongoing.:D
haha owkay Piet..
Good luck eh!
- Je moet ingelogd zijn om een reactie op dit onderwerp te kunnen geven.