View Full Version : Input on a trike idea
De-Ranged
24th August 2008, 19:34
Gidday
I'm doing some research for a shop project ( I run a small 1 man band fab shop)
What I was thinking of, a Mazda 12A rotory motor, 5 speed box running to an independent rear... just becoase I have em spare
Now for the fun bit when I do projects for myself I like to do em sort of to an extreame level just to make em fun... what I was looking at was making this low and a sit on but with the seat down low and set it up with a sports style steering and over tank stance, but with also with nerf bars so you can move around on the trike and use body english to help it corner
What do you think worth doing or something thats gona kill me :laugh:
Oh and for the flamers I don't care if you'll beat me on two wheels, I want an interesting project that will be a bit of fun when its done
Cheers Reece
De-Ranged Engineering
bully
24th August 2008, 19:41
iv seen one unfinished with a 350 chev and ape hangers. duno bout the sports style.
Subike
24th August 2008, 19:43
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=79599&d=1197186013
give you an idea or two?
kiwifruit
24th August 2008, 19:43
2 wheels at the front, 1 at the back :cool:
Subike
24th August 2008, 19:46
or may be these might help a bit
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=79898&d=1197432064
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=79600&d=1197186013
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=79900&d=1197432064
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=79899&d=1197432064
Wasp27
24th August 2008, 19:46
Gidday
I'm doing some research for a shop project ( I run a small 1 man band fab shop)
What I was thinking of, a Mazda 12A rotory motor, 5 speed box running to an independent rear... just becoase I have em spare
Now for the fun bit when I do projects for myself I like to do em sort of to an extreame level just to make em fun... what I was looking at was making this low and a sit on but with the seat down low and set it up with a sports style steering and over tank stance, but with also with nerf bars so you can move around on the trike and use body english to help it corner
What do you think worth doing or something thats gona kill me :laugh:
Oh and for the flamers I don't care if you'll beat me on two wheels, I want an interesting project that will be a bit of fun when its done
Cheers Reece
De-Ranged Engineering
Just a thought.......how about a Subaru Trans-axle set-up.....maybe even auto trans:msn-wink:
FJRider
24th August 2008, 19:59
Just be aware of CERTIFICATION requirements... its not just a case of rocking up to the testing station for a W.O.F. THAT is what is usually the killers of such projects. But it sounds like a starting plan....
De-Ranged
24th August 2008, 20:34
Just be aware of CERTIFICATION requirements
;) no problem there I know the process well from building 4wd's, and yes I imagine I'll have a few issues to sort but thats part of the fun finding an answer that lets me do what I want and keeps the certifier happy
Just a thought.......how about a Subaru Trans-axle set-up.....maybe even auto trans
Na I think I'll stick with the rotory I know this motor, it happily sits on 12g :eek5::laugh: if I do this I want something that will scare me the other thing is I want a manual, I want it to ride like a bike well sort of :laugh: twist throttle seqenshal (sp?) gearshift on the foot hand clutch etc
Brakes still have me a bit tweeked hmm don't know if I do both off the hand or leave em single
Thanks for the pic Subike theres some cool work expecially like the blown 8 :gob: but they are all cruisers... I want a forward stance feet behind lowish bars where your pretty much lyiing on the bike, with a seat thats easy to roll either side so in a corner I can roll down low and push the bike sideways ;) something different to anything I've found on the net ... yes I know its gona make setting up a bit difficult due to alot of the weight being forward but if I get it right this should handle like a demon :yes:
Oh and kiwifruit... na :laugh: I've seen them on the net it just looks wrong, and at the end of the day form is still a design consideration...
Cheers Reece
sinfull
24th August 2008, 21:05
Have a look at randomphil profile and perhaps chat to him about it ! Know he's done a mazda rota trike !
AllanB
24th August 2008, 21:17
Interesting project idea.
I like the different sports seating idea, however the only real isue I forsee is with your weight over the bars true sports style will make it a bugger to turn as it will be a lot more work pulling the bars on a trike.
Possibly wide flat bars on the top fork clamp or a wider tall clip-on style will aid steering.
De-Ranged
25th August 2008, 08:27
must be too early
De-Ranged
25th August 2008, 08:38
Have a look at randomphil profile and perhaps chat to him about it ! Know he's done a mazda rota trike !
just run a search on him, Damm that thing must drag a bit of air... but its still a cruiser, upright seating, it would be interesting to see what his braking is like under hard braking that front wheel is taking a huge load!!
I like the different sports seating idea, however the only real isue I forsee is with your weight over the bars true sports style will make it a bugger to turn as it will be a lot more work pulling the bars on a trike.
Possibly wide flat bars on the top fork clamp or a wider tall clip-on style will aid steering.
I'll be pushing as much weight back as possible the gearbox will only have a vibration damper between it and the diff being IRS I can use the range of movement in the cv's to move the rear wheels forward a bit, use the cooling battery tank etc to aid in balance, to ease some of the steering force I can play with the steering head angle, rake and trail... its not gona lay over like a bike so there is room to play with these so long as I have enough trail to self center :;): and yes I will be using a wider bar setup all that said I'm still gona want a fair portion of the weight on there just to give the front the grip it needs to hang on in a corner becouse it stays vertical the weight has to be there to push the rubber down, on a bike you get the extra grip from G forces from the cornering, worst case if my test runs show I need more weight and teh steering is to heavy I'll step off the steering head and modify a power steering box off a car :;):
Ideally I want this to break the back loose before the front, sledging off a corner dos'nt appeal :laugh:
Cheers Reece
CookMySock
25th August 2008, 09:00
Hi Reece,
It's great to read about your scratch-building. Definitely keep us informed of your projects - you might even pick up a client or three from here.
Watching with interest how you get stuff certified too. Great work!
Steve
p.s. sooo tempted to build something myself. Sadly, brokeass and no workshop.
De-Ranged
25th August 2008, 11:03
its still a bit away... got a trials truck to finish and then a new toy for me a Valiant Ranger Ute that needs a new motor don't know lexus or infinity :Punk: at the moment I'm just doing a bit of research into the idea of a low sports style trike and if it would work like I imagine, been more than a few yrs since I was last on a bike and that was offroad, I never got into road bikes, a mate of mine did and his death put me off them at the time
Sort of got interested due to a client who wanted a V8 trike made up, he was a dreamer :laugh: but he did get me interested but with my sort of twist
If the feed back is good on the idea, thats what I want from you guys... is this gona ride like I think or is it gona try and kill me :laugh:
If its good then I'll start doing the figures and sourcing the rest of the parts.... work willing this time next yr I should be looking at test runs :shifty:
Oh and its a shop project at the mo, I didn't think about making others :laugh: you never know tho
Cheers Reece
sinfull
25th August 2008, 11:19
just run a search on him, Damm that thing must drag a bit of air... but its still a cruiser, upright seating, it would be interesting to see what his braking is like under hard braking that front wheel is taking a huge load!!
Cheers Reece
A vid i made of a ride we did up the forgotten world H/way to Tahora
Phill was there with his trike mob from wellington bit of him in the bowl which was dry as !<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/4ejrtf7nX1k&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/4ejrtf7nX1k&hl=en&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>
kiwifruit
25th August 2008, 11:46
http://thekneeslider.com/archives/2007/12/06/f3-adrenaline-from-trirod-motorcycles/
sinfull
25th August 2008, 11:55
Cheers ReeceA shorter one with sound !<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/HxbLSSnchZY&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/HxbLSSnchZY&hl=en&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>
slimjim
25th August 2008, 12:03
would almost look at an old three wheel farm bike frame, and start from there in altering , they have a low frame height and easy to cut an fab longer chassic frame work ,
De-Ranged
25th August 2008, 13:41
would almost look at an old three wheel farm bike frame, and start from there in altering , they have a low frame height and easy to cut an fab longer chassic frame work ,
:laugh: yea thats what I grew up thrashing thats part of what this idea is based on.... and no I wouldn't even consider it, the machine welding on mass produced stuff can be shocking, porus welds, undercut welds, bad penetration etc the other thing is they are designed to handle what maybe 30hp, now while I havn't had it dynoed I'd say it would easily top 150hp na I'll build what I want, its more fun that way ;)
thanks for that vid... theres some real interesting handling if you watch closely he's getting alot of understeer under power, alot more than I thought given his motor is so far forward hmmmm wheres he based might consider a drive to see it in action...
Damm Kiwifriut that thing is sick :2thumbsup alot better than the bike conversions I've seen ..... hmmm bastard now you've got me thinking about another trike :laugh:
Cheers Reece
AllanB
25th August 2008, 16:15
Have a look here
http://images.google.co.nz/imgres?imgurl=http://www.pashnit.com/pics/hayabusa/hayatrike.jpg&imgrefurl=http://www.pashnit.com/forum/showthread.php%3Ft%3D41&h=638&w=840&sz=69&hl=en&start=3&sig2=dNXJ1Tp-MFQbGLYIy57v_w&usg=__FYrzxC3NevXBnSvRgOsamRNoMhE=&tbnid=vzibnFrYnTLiTM:&tbnh=110&tbnw=145&ei=ki-ySKelDp6msQPGg82CAQ&prev=/images%3Fq%3Dgsxr%2Btrike%26gbv%3D2%26hl%3Den
Possibly some of the best and worst trikes around - 7 pages of the suckers and none like you describe - your project will be unique :2thumbsup
madmal64
25th August 2008, 16:29
Have a look at randomphil profile and perhaps chat to him about it ! Know he's done a mazda rota trike !
Phil could be worth a chat to. I think he brought it pretty much as you see it.
Also craneman (http://www.kiwibiker.co.nz/forums/member.php?u=13248) would be worth a PM as well.
His trike is a V8 one but I know he is up on the whole cert stuff.
Gary at metalworx in Welly (04) 38 5113 is another triker that would be worth a call. A wealth of info in the building of tripods!
De-Ranged
25th August 2008, 22:56
thanks for that Madmal... I will get in touch with them
Right :cool: since I havn't recieved one bad comment on the sports ridding style idea I'm gona roll with it :laugh: I've got the idea stuck in my head and I want to see this thing rolling... had a bit of a change of plans tho :rolleyes: after alot of thinking I'm gona go with the 2 up front (cheers kiwifriut) this design will give me more leeway with handling still going with a rotory engine and manual box, this will be a bit bigger than the one in kiwifruits link, some where round 2 1/2m long and 1 1/2m wide and low :devil2:...
I'm gona start it when I've finished the trials truck (about 6weeks), I'm still gona do the other single upfront trike (thats getting shunted down the list a bit :laugh:), so I'm after another rotory n box if anyone knows of a complete one loom ecu etc PM me
I'll post up a build thread here if people want.... might be building two yet one of my mates is a disabled ex rider, took out a strainer post when he dumped his bike, I think I could make this work for his one good arm if I fitted power steering :cool:
Thank you all for your imput :2thumbsup
Oh just on a side note, might have to get my bike licence updated from the L plate (had them for 17yrs now :laugh:) don't think 12-1300cc is legal on L plates
Cheers Reece
De-Ranged
26th August 2008, 09:20
:laugh: that didn't take long, got me a motor, 5 speed box loom etc everything I need to run, for the books 13b turbo, bog standard well sort of so 185hp :drool: now I ring my certifier and let him know what I want to do so he can do some research and let me know the goal posts I gota shot for :cool:
Cheers Reece
De-Ranged Engineering
popelli
26th August 2008, 18:12
maxda rotary trike
yes its been done before
a guy on the north shore somewhere around albany has built several of them
avgas
26th August 2008, 18:22
there was a Tri-Magnum on trademe a short while ago - thats a nice trike.....he only wanted a few grand too
AlBundy
26th August 2008, 21:19
My advice...
Don't do it...
People who ride trikes are biker wannabees... But lack the skill and coordination for a bike.
De-Ranged
27th August 2008, 08:20
My advice...
Don't do it...
People who ride trikes are biker wannabees... But lack the skill and coordination for a bike.
:laugh: in case you didn't read what I've posted I am a biker wannabee.... I've been 17yrs on L plates
Jokes aside I'm building this becouse I have a passion for engineering, I love building different things and possibly so I can have a scary mid life crissis toy (getting close to that time) 4 the books I know full well I'll never use this to its full potential.... now for the dig, aghhh F it I can't be bothered starting a flaming war with someone who lacks the intelligence and effort to read all that is posted and come up with a reason why not, other than a deperate need to put down others who have the strength of character to be different... :whocares:
Oh and in a sad way you have touched on the one major weak link in the design (that is why I bothered to reply) becouse you are so low to the ground you won't have the vision that you have on a bike the trade off is the extremely low CoG and handling that has the potential to outstrip a bike (based on the rubber contact pattern of the tyres :;): and weight transferance) whilst on track this won't be an issue on road this limited vision is gona be a big issue requiring
skill and coordination
Hey Popelli could I ask a favor, could you ask around the local bike shops see if you could track him down.... I'd love to chat with him :yes:
Cheers Reece
AlBundy
28th August 2008, 18:16
I did read that it was an engineering project. I just chose to ignore it for the sake of a sarcy post...
BWAHAHAHAHAHAHA.....
Have fun with the project....
Irontusk
20th September 2008, 22:13
I was looking for car parts and I saw this for sale http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbikes/Other/auction-174408547.htm
It's not what you're talking about, but it's closer than most trikes.
Subike
20th September 2008, 22:17
I was looking for car parts and I saw this for sale http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbikes/Other/auction-174408547.htm
It's not what you're talking about, but it's closer than most trikes.
dime a dozen those converted bikes
Irontusk
21st September 2008, 01:36
I had only seen it done with cruisers 'til now. With a sports/tourer it looks sort of.. wrong.
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