Mito 443 Project
Discussion
Yazza54 said:
Oh wow, that bad? I'll have a gander.
That Athena big bore kit inc stroked crank etc isn't really that much more expensive than a new ktm300 top end in real money
If its a 421 you fancy, there's plenty of reputable sources in the US. Just avoid TSS at all costs. That Athena big bore kit inc stroked crank etc isn't really that much more expensive than a new ktm300 top end in real money
A well prepped 421 should see around 80 to 90 bhp, non powervalved.
Decent carbs make a big difference, depending on whether you want top end or good response.
I keep looking at this for my spare RS frame
Although I.m tempted to make a 450 class racer with a ktm or yzf 450 motor.
Yazza54 said:
Oh wow, that bad? I'll have a gander.
That Athena big bore kit inc stroked crank etc isn't really that much more expensive than a new ktm300 top end in real money
You can buy an Athena kit complete from Norbo off the RD forum mate...and the wicked retailer was discussed in detail just of recent, ill pm you the thread.That Athena big bore kit inc stroked crank etc isn't really that much more expensive than a new ktm300 top end in real money
Yazza54 said:
Yup!
Now do I use the mito forks and wheels etc and get it making progress as I've already bought them or make things really complicated and use different forks and wheels.
I've already bought the mito parts so nothing to lose I guess.
Why not get it up and running with what you have then change bits as and when you feel? No point spending loads and it's good as it is.Now do I use the mito forks and wheels etc and get it making progress as I've already bought them or make things really complicated and use different forks and wheels.
I've already bought the mito parts so nothing to lose I guess.
Yazza54 said:
Yup!
Now do I use the mito forks and wheels etc and get it making progress as I've already bought them or make things really complicated and use different forks and wheels.
I've already bought the mito parts so nothing to lose I guess.
I can't remember, but does the mito have mountings for double discs at the front? If not that may be the only reason to change front forks, you'll definitely need to scrap the rear shock anyway, if the forks are good for double discs all you need do is re spring/oil and your away. Now do I use the mito forks and wheels etc and get it making progress as I've already bought them or make things really complicated and use different forks and wheels.
I've already bought the mito parts so nothing to lose I guess.
Lincsblokey said:
Yazza54 said:
Yup!
Now do I use the mito forks and wheels etc and get it making progress as I've already bought them or make things really complicated and use different forks and wheels.
I've already bought the mito parts so nothing to lose I guess.
I can't remember, but does the mito have mountings for double discs at the front? If not that may be the only reason to change front forks, you'll definitely need to scrap the rear shock anyway, if the forks are good for double discs all you need do is re spring/oil and your away. Now do I use the mito forks and wheels etc and get it making progress as I've already bought them or make things really complicated and use different forks and wheels.
I've already bought the mito parts so nothing to lose I guess.
Yazza54 said:
Nope. Single disc albeit a big one with a brembo goldline caliper... My thoughts too mate but then again it'll be quite lightweight and won't be all about top speed
I wouldn't worry about being a single disc if you can get a decent caliper/disc setup. Many Supermono racers were using single discs until very recently, and no classic Manx Nortons etc use twin discs, and they're putting out as much power as you'll be looking at and probably weigh more and being used far harder. Just as an aside, wasn't the whole point of this project to use up an engine you had? Top man-points for diverting and getting carried away
srob said:
Yazza54 said:
Nope. Single disc albeit a big one with a brembo goldline caliper... My thoughts too mate but then again it'll be quite lightweight and won't be all about top speed
I wouldn't worry about being a single disc if you can get a decent caliper/disc setup. Many Supermono racers were using single discs until very recently, and no classic Manx Nortons etc use twin discs, and they're putting out as much power as you'll be looking at and probably weigh more and being used far harder. Just as an aside, wasn't the whole point of this project to use up an engine you had? Top man-points for diverting and getting carried away
It was! But to go 300 on the ktm it'd cost not that much less than a 421cc setup on a banshee/rd motor, and at the end of the day it's always just going to be a big mx engine - not ideal. Another big thing is the mito-ypvs engine mounts are available to buy, on a custom build getting the engine mounted is a massive milestone and I want to hit that ASAP so then it's starts to look like a bike in kit form rather than a load of bits that don't fit together if you know what I mean?
Edited by Yazza54 on Monday 20th January 08:42
srob said:
Yeah it sounds sensible, and very few projects finish as they started!
Forks wise, are they the same diameter as the RS250? They had a one spring setup I seem to remember, and may be weighted for the heavier bike?
Quite similar as far as I'm aware, I think they're 53mm will have to check. RS250 parts seem to either be unobtainable or a rip off. Might be worth seeing if I could retrofit the RS spring in my fork though if that's what you were thinking? Forks wise, are they the same diameter as the RS250? They had a one spring setup I seem to remember, and may be weighted for the heavier bike?
steve954 said:
Why not get it up and running with what you have then change bits as and when you feel? No point spending loads and it's good as it is.
This^^^^^^Test the theory and then fine tune it later. Thats why I did a scruffy build on my supermono first to make sure it wasn't going to end in expensive tears etc. (Yes it's still sat on the lift. No it hasn't changed since my last update. Bigger project has got in the way.)
Yazza54 said:
srob said:
Yeah it sounds sensible, and very few projects finish as they started!
Forks wise, are they the same diameter as the RS250? They had a one spring setup I seem to remember, and may be weighted for the heavier bike?
Quite similar as far as I'm aware, I think they're 53mm will have to check. RS250 parts seem to either be unobtainable or a rip off. Might be worth seeing if I could retrofit the RS spring in my fork though if that's what you were thinking? Forks wise, are they the same diameter as the RS250? They had a one spring setup I seem to remember, and may be weighted for the heavier bike?
Mk2 Aprilia forks are the same as those fitted to the Honda SP1 etc. So whilst RS prices are a rip off, if you can find out what else used them, parts can be sourced from other bikes very easily. So if you can find a decent 53mm set up, maybe use that complete
bass gt3 said:
Yazza54 said:
srob said:
Yeah it sounds sensible, and very few projects finish as they started!
Forks wise, are they the same diameter as the RS250? They had a one spring setup I seem to remember, and may be weighted for the heavier bike?
Quite similar as far as I'm aware, I think they're 53mm will have to check. RS250 parts seem to either be unobtainable or a rip off. Might be worth seeing if I could retrofit the RS spring in my fork though if that's what you were thinking? Forks wise, are they the same diameter as the RS250? They had a one spring setup I seem to remember, and may be weighted for the heavier bike?
Mk2 Aprilia forks are the same as those fitted to the Honda SP1 etc. So whilst RS prices are a rip off, if you can find out what else used them, parts can be sourced from other bikes very easily. So if you can find a decent 53mm set up, maybe use that complete
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