Ecobogan
100 W
Hi everyone,
Along with half the planet,I've been reading this site for some time now in efforts to gather as much info on a build idea.
I stumbled across this seemingly horrendously awesome idea of motomoto and a few others of running an astro 3220 or similar through an existing small bore dirt bike trans.
Has anyone done this successfully as yet?
The 'gearboxes are awesome conclusive proof' thread seem to divide camps in the pro v anti gearbox right down the middle with no clear right and wrong that I could tell.
So how's this for a start. I've scored a Trek session 10 as the blank canvas. Take a ktm 65 engine,remove the crankshaft along with all other unnecessaries,kick start, water pump set up and machine off unwanted fixings. Weld the the clutch inner to outer and machine off clutch basket fingers etc. fit the astro motor where the crank was(yes it fits) and turn up adapter bosses to fit the primary drive gear onto the astro shaft to drive the clutch basket, effectively making it an electric crank.
As motomoto and others have mentioned the nature of a two stroke bottom end would easily lend itself to a liquid cooling set up.
The purpose of this build is an alternative to my beloved RMZ450 and would be used for some tight technical riding up steep enduro type hill limbs and high speed forestry trail work.
I've mucked about with these little motors aplenty and with the crank,head, barrel and other ancillaries removed wouldn't be that heavy.
It would have to be grafted into the frame in front of the bottom bracket, drive would be left side off the disc rotor mount using a 420 type chain or similar.
This would be a complex and lengthy project that'd no doubt take a few attempts, delving deep into the unknown with many one off parts. However a gutsy power unit in the one housing with 6 gears and liquid cooling potential is worth a thought.
I'm a metal fabricator, build motorcycles and have friends in the cnc game. I haven't ruled out a hub motor build by any means just yet but this seemed a tad more appealing.
What do you guys and gals think? Any ideas would be grand.
Cheers Richard
Along with half the planet,I've been reading this site for some time now in efforts to gather as much info on a build idea.
I stumbled across this seemingly horrendously awesome idea of motomoto and a few others of running an astro 3220 or similar through an existing small bore dirt bike trans.
Has anyone done this successfully as yet?
The 'gearboxes are awesome conclusive proof' thread seem to divide camps in the pro v anti gearbox right down the middle with no clear right and wrong that I could tell.
So how's this for a start. I've scored a Trek session 10 as the blank canvas. Take a ktm 65 engine,remove the crankshaft along with all other unnecessaries,kick start, water pump set up and machine off unwanted fixings. Weld the the clutch inner to outer and machine off clutch basket fingers etc. fit the astro motor where the crank was(yes it fits) and turn up adapter bosses to fit the primary drive gear onto the astro shaft to drive the clutch basket, effectively making it an electric crank.
As motomoto and others have mentioned the nature of a two stroke bottom end would easily lend itself to a liquid cooling set up.
The purpose of this build is an alternative to my beloved RMZ450 and would be used for some tight technical riding up steep enduro type hill limbs and high speed forestry trail work.
I've mucked about with these little motors aplenty and with the crank,head, barrel and other ancillaries removed wouldn't be that heavy.
It would have to be grafted into the frame in front of the bottom bracket, drive would be left side off the disc rotor mount using a 420 type chain or similar.
This would be a complex and lengthy project that'd no doubt take a few attempts, delving deep into the unknown with many one off parts. However a gutsy power unit in the one housing with 6 gears and liquid cooling potential is worth a thought.
I'm a metal fabricator, build motorcycles and have friends in the cnc game. I haven't ruled out a hub motor build by any means just yet but this seemed a tad more appealing.
What do you guys and gals think? Any ideas would be grand.
Cheers Richard