rowlocks
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| posted on 8/10/11 at 04:54 AM |
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How to mount Bike wheels from one side
Hi,
What would be the best method of mounting a motorcycle wheel on a hub from one side? (for the front wheels of a trike).
If a bike rear wheel is used then it seems wrong to have car tires on the front. So much rubber at the front and only a small contact patch at the
rear.
Also what kind of uprights/hubs would be best? Has anyone built their own?
I look the looks of these ones.
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rayward
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| posted on 8/10/11 at 06:25 AM |
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if you take a look a ducati 748's and 916's or Triumph Daytona t595 /speed triple they have a single sided swingarm which would make
things easier i reckon
hth
Ray
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scootz
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| posted on 8/10/11 at 06:58 AM |
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The ones on the Sub (the trike in your photo) are custom jobs.
Your best bet are BMW rears that will fit straight-up to a conventional hub. I'm using the K1200 wheel on the back of my reverse-trike until I
can afford a custom one.
The only problem with fitting 3 of them is the orientation as the BMW ones are not symmetrical - the wheel design tends to flow in the direction of
the bikes travel. So you'll end up with one wheels design flowing in the opposite direction to the other two (does that make sense).
The ONLY way around it with the BMW design is to to buy one 6" from a K1200 (£250-ish), and then bag 2 six-inch rears from a R1200S / HP2 Sport
which has the swingarm facing in the opposite direction (so all 3 wheels flow the same way). However... the R1200S / HP2 Sport wheels will set you
back £500 a pop second hand (if you can find any!).
It's Evolution Baby!
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adithorp
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| posted on 8/10/11 at 07:49 AM |
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Don't know a lot (anything) about trikes but, isn't the bike tyre the wrong sort of contruction/design for two wheel steering? It's
designed to lean and roll over to the side when turning, hence it's shape, whereas on a trike (like a car) it won't. Aren't you just
fitting tyres with a very small contact patch?
Surely the better answer is to find a car tyre for the rear? So you get better grip at the back (and front) rather than less grip at both ends.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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smart51
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| posted on 8/10/11 at 06:02 PM |
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You're better off with nice square car tyres unless you're going to lean round corners. And they mount conventionally too, so you
don't have to reinvent the suspension.
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Benzine
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| posted on 8/10/11 at 06:43 PM |
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Would it be possible to make your own simple hub that has a shaft that's threaded at the end? Slide the wheel & bearings on and tighten
up...
I'm interested in this topic, I know there's talk of motorbike tyres not being suitable but the reverse trike i'd want to use them
on wouldn't be going more than 50mph. I couldn't find any remotely thin enough car wheels & tyres
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rowlocks
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| posted on 9/10/11 at 04:44 AM |
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Would a 20mm shaft be strong enough to be held from one end?
I just saw this one. Doesn't look too bad but not as nice as the proper hubs.
One option to even the wear out would be to deliberately design the suspension so that the camber changes a lot when rolling over, so the edges get
worn as well... Lol.
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smart51
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| posted on 9/10/11 at 08:00 AM |
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quote:
Originally posted by BenzineI couldn't find any remotely thin enough car wheels & tyres
Smart Diesels have 135/70/15 front tyres which might do. Fiat Cinquecentos have 135 space saver tyres on a 13" rim (and are rated at 100MPH if
you get them balanced). If you want thinner than that then you have to look at trailer tyres, which are not known for their grip or power handling.
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scootz
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| posted on 9/10/11 at 08:59 AM |
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quote:
Originally posted by rowlocks
Would a 20mm shaft be strong enough to be held from one end?
I just saw this one. Doesn't look too bad but not as nice as the proper hubs.
One option to even the wear out would be to deliberately design the suspension so that the camber changes a lot when rolling over, so the edges get
worn as well... Lol.
I quite like that front-end arrangement!
You could mount sports bike front wheels on those and with a little extra fabrication run all 4 bike calipers as the doner bike intended. Very much
style-over substance as the contact patches on 2 x 3.5 inch width front bike wheels would be awful, but it would look uber-cool (IMHO!).
Can you get decently grippy car tyres that would fit a 3.5" wide 17" diameter wheel?
It's Evolution Baby!
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Russell
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| posted on 9/10/11 at 09:40 AM |
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You need to be looking for sidecar tyres. They are like thin car tyres with a flat tread pattern.
I mean the Wallace and Gromit type sidecar, not the leany outy clingy onny round the bendy racing type sidecar.
I'm a bilingual illiterate. I can't read in two languages.
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rowlocks
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| posted on 11/10/11 at 10:24 PM |
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quote:
Originally posted by scootz
You could mount sports bike front wheels on those and with a little extra fabrication run all 4 bike calipers as the doner bike intended. Very much
style-over substance as the contact patches on 2 x 3.5 inch width front bike wheels would be awful, but it would look uber-cool (IMHO!).
4 calipers on the front would look awesome! Probably wouldnt be good for unsprung weight though.
Isnt the size of the contact patch determined by the weight of the vehicle and the tyre pressure? So with car tyres you would have a wide but very
thin contact patch unless you underinflate the tyres, which would be really good for hydroplaning...
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Simon
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| posted on 11/10/11 at 10:40 PM |
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quote:
Originally posted by Benzine
I couldn't find any remotely thin enough car wheels & tyres
How about Citroen 2CV wheels. Light and thin
ATB
Simon
[Edited on 11/10/11 by Simon]
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scootz
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| posted on 28/10/11 at 07:05 PM |
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quote:
Originally posted by rowlocks
Can anyone point me in the direction of any further info on this trike? I just want to see the front upright design in better detail.
Cheers.
It's Evolution Baby!
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Benzine
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| posted on 28/10/11 at 07:09 PM |
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http://www.eco-exo.com/gallery_3.html
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tompat3463
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| posted on 28/10/11 at 07:23 PM |
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quote:
Originally posted by scootz
quote:
Originally posted by rowlocks
Can anyone point me in the direction of any further info on this trike? I just want to see the front upright design in better detail.
Cheers.
IKEA
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scootz
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| posted on 28/10/11 at 07:41 PM |
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quote:
Originally posted by tompat3463
IKEA
It's Evolution Baby!
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scootz
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| posted on 28/10/11 at 07:41 PM |
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quote:
Originally posted by Benzine
http://www.eco-exo.com/gallery_3.html
Thank you!
It's Evolution Baby!
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Benzine
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| posted on 28/10/11 at 10:17 PM |
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No problem! 
Just been googling 'trials car', do they use bike wheels?
[Edited on 28-10-2011 by Benzine]
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trikerneil
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| posted on 29/10/11 at 11:25 AM |
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quote:
Originally posted by Russell
You need to be looking for sidecar tyres. They are like thin car tyres with a flat tread pattern.
I mean the Wallace and Gromit type sidecar, not the leany outy clingy onny round the bendy racing type sidecar.
Avon S&M MkII
As used on the front of many "right way round" Trikes
HTH
Neil
ACE Cafe - Just say No.
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scootz
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| posted on 29/10/11 at 12:25 PM |
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Would they be 'grippier' than a similar width bike tyre?
It's Evolution Baby!
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scootz
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| posted on 29/10/11 at 01:27 PM |
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Sorry to be hijacking your thread Rowlocks... just thought it would be best to keep all the info in the one place.
I'm having a 'moment' and can't work this out for myself!!!
Could this type of wheel be run with a single brake-disc on the inside only on a spindle-hub, or would this cause wobble???
Cheers!
It's Evolution Baby!
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JF
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| posted on 30/10/11 at 06:55 PM |
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No wobble shouldn't be a problem. As you remove equal weight around the entire wheel there is no change in balance, hence no wobble. There will
be a slight weight difference left to right, but that doesn't matter... ever had a good look at your average car wheel?
I'd be more concerned about side loading on sleek/delicate wheels like that though...
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scootz
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| posted on 4/11/11 at 02:29 PM |
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Cheers!
Any other opinions on this one!?
It's Evolution Baby!
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designer
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| posted on 4/11/11 at 03:55 PM |
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have to agree that there will be no wobble.
But, as with mine, I am more concerned about side forces on a wheel not designed to take any.
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scootz
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| posted on 4/11/11 at 07:04 PM |
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Ta.
I was originally dead against using bike wheels for that same reason, but I'm getting less and less concerned about it as time goes by.
My trike should comfortably be less than 300kg, and I wouldn't imagine that I'll be pulling high lateral loads with two 120 section bike
tyres on the front!
I'm steadily drifting from 'go' to 'show' on this project!
It's Evolution Baby!
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