Some Questions about making a 16" Trials/Street uni.

[Evan Byrne]

Im on a mission to make a 16" trials/street unicycle and i have some questions about making it....


The design is to use a Troker CX 16" rim, Qu-Ax Hub with 127mm cranks, Jimmy Cs, Standard 16" tire, Homemade frame, 2 bolt seat post clamp, kh air saddle.

I am wondering how well the standard 16" rim will hold up?

can it take 3-4 foot drops? To me it seems small enough that if you keep it ture and tensioned alot it should hold to the abuse.

Can a standard steel rim like that be hardened?

Is there a difrence in hub widths between the Qu-Ax and the normal torker cx hub?

Will i need difrent size spokes?

Are there any stronger rims than the torker can be bought ?

Are Jimmy Cs wider than the standard pedals on the torker?





i would also to apoligize for bashing tyler so much, but lets not get into that right now.






Thanks

Ev.

[James_Potter]

I think a real 16" trials uni would need a wide tire, like at least 2 inches probably bigger, so a standard CX rim and tire wouldn't work..... you'd need to make a new frame too.

[Evan Byrne]

Well for street o prefur a thiner tire, for tight stuff, ans spins and crap, stuff like that.


im making a frame anyway

[James_Potter]

that's freestyle, not street. street certainly has freestyle incorporated into it, but you need the wider tire for more strength, and especially more bounce to get higher jumps. which actually would be the entire point of making a 16" trials cycle, to make it lighter so you can jump higher....

[Evan Byrne]

i think its kinda a draw, lighter, yet not a wide tire.

[Evan Byrne]

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=2904&item=7149832880&rd=1

[Unitik908]

i just bought a uni on ebay with that 16x2.125 and its really nice little tire, id get that..

Chase

[James_Potter]

that would be a good tire, but it's too wide for the standard CX rim. and even if you were going to use the standard CX rim, it totally wouldn't be nearly strong enough for any trials/street.

[Evan Byrne]

can you post links of the uni? Maybe take pics? what are the specs on it?

[Evan Byrne]

Waht if you harden it? Or i can make a rim(People, please dont get on my case about me not being able ot make a rim.)

[James_Potter]

Originally posted by Evan Byrne
Waht if you harden it? Or i can make a rim(People, please dont get on my case about me not being able ot make a rim.)

I dunno what it means to 'harden' a rim, just reinforce it maybe? but I think the best way would be to build one like you suggested.

[Evan Byrne]

Its a prosses of heating and cooling the rim

[DK]

Here (http://alexrims.com/rims/bfj_dm24.htm) is a stong 16" rim. You are welcome.

[Evan Byrne]

THANK YOU DK! If you were a girl i would kiss you.

[Evan Byrne]

i found one here (http://www.unicycle.com/shopping/shopexd.asp?id=623)

[DK]

The one I found is much better. Its double wall and high quality.here (http://alexrims.com/rims/mc_dm24.htm) is the same rim listed under downhill.

[Evan Byrne]

That dosnt come in a 16" size Dk, but i did find this (http://www.microtrax.net/store/16inch_tires.html)

[DK]

16" x 1.75-2.125" 305X24 16H 370G So am i just stupid?

read it (http://alexrims.com/rims/bfj_dm24.htm)

[Evan Byrne]

The seccond one you posted.

[DK]

W00T I was refering to the first rim I posted. The second one is the same rim, but in bigger sizes.

[General Dibbles]

Originally posted by James_Potter
that's freestyle, not street. street certainly has freestyle incorporated into it, but you need the wider tire for more strength, and especially more bounce to get higher jumps. which actually would be the entire point of making a 16" trials cycle, to make it lighter so you can jump higher....

that is wrong, you do not need a wide tire for street, i ride a 20x2.1 primo wall tire at 75psi for street and can hop just as high if not higher as i could on a trials tire. And i use a triple wall rim so the wheel is just as strong if not stronger than the alex dx 32

[Unitik908]

ooo thats a rare burn on james... and i accually ride an even smaller wheel for all my trials and street needs and it works fine..

Chase

[UniTyler]

Seems to me that a 16" uni would be hard for spins cause you'd have to pedal so fast, but maybe I'm wrong. I shall try a spin on my bother's 16 incher tomorrow and update ya! Hmm...now that I think about it, I also think it would be hard if you were going to jump off of something into riding backwards because you have to pedal fast and you might not be able to pedal fast enough with that tiny wheel. Maybe different sized cranks would help?! :confused:

[Evan Byrne]

THAT my freinds, is a 16" tire!

i wonder if it would fit the alex rim....

[James_Potter]

Originally posted by General Dibbles
that is wrong, you do not need a wide tire for street, i ride a 20x2.1 primo wall tire at 75psi for street and can hop just as high if not higher as i could on a trials tire. And i use a triple wall rim so the wheel is just as strong if not stronger than the alex dx 32

how high can you hop, and how much does your uni weigh? because I know that someone like Ryan Atkins certainly could not hop as high on a 20x2.1 tyre as he does on a 20x2.5 tyre. so if you're only hopping about 12 inches on both, then.... yeah.

[Evan Byrne]

Can anyone awnser my other questions?


I am wondering how well the standard 16" rim will hold up?

can it take 3-4 foot drops? To me it seems small enough that if you keep it ture and tensioned alot it should hold to the abuse.

Can a standard steel rim like that be hardened?

Is there a difrence in hub widths between the Qu-Ax and the normal torker cx hub?

Will i need difrent size spokes?

Are there any stronger rims than the torker can be bought ?

Are Jimmy Cs wider than the standard pedals on the torker?

[General Dibbles]

Originally posted by James_Potter
how high can you hop, and how much does your uni weigh? because I know that someone like Ryan Atkins certainly could not hop as high on a 20x2.1 tyre as he does on a 20x2.5 tyre. so if you're only hopping about 12 inches on both, then.... yeah.

i can pedal grab picnic table easy, and get onto handrails all using a rolling hop. my uni weighs about 12.5lbs

[smdO2]

To answer your question about the big apple tire check the schwalbe site (http://www.schwalbetires.com/on_tour.php?Nickname=BIG%20APPLE&Image=TireImages/big_apple.gif) - 16x2" but remember it is a slick tire.

If you are serious about making a 16" trials, the alex rim dk posted about is only 16 hole but is double walled, the alex rim you posted about comes in 36 hole but is single walled,
you best try find a 36 hole double walled rim - find out if alex do one.

the tire you posted i doubt would fit in a alex rim and IF it did it would have a lot of fold over, probably would weigh alot, and would increase your wheel diameter closer to 20" again.

what lenght cranks were you planning on using - cotterless?

why dont you use the koxx-one splined hub with 110 cranks?

still dont know if a 16" trials would be practical, but would love to see one being made

[Evan Byrne]

DARN, Wish i had known that Knoxx had 110 splined.

Well i ordered my stuff for the (2) 16" unis.

this is what i got:

(2) Alex DM24 16" rims
(2)Innova BMX 16 X 2.125 tires
(1) Qu-Ax Hub/Cranks ,127mm cranks
(1) Suze 28 hole hub
(2)United crank arms, 89mm
(2) Oddesy GI seat post clamps(22.2)
(1) 1 Pair of Snafu pedals
(1) pair of Jimmy C pedals
(1) Primo Rail post(22.2)
(1)Kinport Rail addapter
(3) Sets of Yuni bearing holders
(48) 142mm spokes& nipples
5ft of 4130 5/8th tubing
5ft of 4130 1" tubing with a .065 wall(for the neck)

[Evan Byrne]

Thats stuff obove will build (2) 16" unis, these are the specs on both...


#1 16":
Alex dm24 rim
Suze hub
united cranks
Sun frame
innova tire
Myaita air saddle
Oddesy twisted pedals

This one will be mainly for freestyle cause if its short cranks and not so strong hub

#2 16":
Alex dm24 rim
Qu-ax hub/cranks(127mm)
Jimmy C pedals(with grind plates)
Big Apple Tire
Home made custom frame
Primo Rail seat post
Kh air saddle

this ones gona be the sweet one of the two, this one wil be for street and trials.

[UNIquelyCanadian]

Sounds good,
btw, it must be nice to have access to alot of money.

[Evan Byrne]

it was actuly only like 275

[forrestunifreak]

Seems like a 16" would be good for unispins,footplants,crankflips and the like,not sure if it would work for 180s and 360's or not.



About the skinny tire thing,in Universe 2 It looks like Dan heatons tire on the green unicycle he has is smaller than a regular trials tire,it also is smooth.Looks like he might have it at a higher tire pressure too.
Does anybody body know what tire he has?

[Evan Byrne]

Infact i just got my tires, they came the day they shiped!


they are 2.125s, they loook like they will work

[johnfoss]

Originally posted by GeneralDibbles
you do not need a wide tire for street, i ride a 20x2.1 primo wall tire at 75psi for street and can hop just as high if not higher as i could on a trials tire. Correct. You do not need an anything tire for any sort of riding. You can do Trials on Troxel if you really want to, at least for a little while. A standard Coker wheel can hold up to thousands of miles of abuse.

Also Dibbles points out that you don't really need the Trials tire to jump upward, as much as you want it for landing drops. Yes, a tire with more air volume gives you more spring, but a smaller tire will also be lighter, so it might nearly even out.

As for Ryan Atkins, nobody really knows what he can do if he really wants to. I bet he could do some great ups on a skinnier tire, but he destroys full-on Trials wheels, so why would he want to?

Originally posted by tylercox
Seems to me that a 16" uni would be hard for spins cause you'd have to pedal so fast, but maybe I'm wrong. Yes and no. What you will find is that your cranks are so long (at 127 + Q factor) that you can barely keep them off the ground when riding straight. It will be difficult to turn without your feet hitting the ground. This will make it much harder to get into spins because you need to build up rotational momentum. You don't really need speed, but you do need to be able to turn smoothly.

Shorter cranks (if there are any), minimal Q factor, and smaller pedals will help.

I don't know if anybody asked this yet, but why a 16"? You'll have to make numerous compromises on parts because there are fewer choices. Do you really need a smaller wheel? I imagine the greatest reward will be lightness, but how much? And at what cost of being able to keep your pedals off the ground?

If you have the opportunity, I highly recommend you do some riding around on a "regular" 16" unicycle. Note the length of the cranks, the Q factor between the pedals, and how much they touch the ground. Keep this in mind for whatever you're putting together. Without rideability, it may not be worth the cost and effort.

[forrestunifreak]

I've got a 16" CX on the way for free, and I've got 2 Duro 16X2.125 tires laying around, and I've got a schwinn seat lying around, so we'll see how that go's...

[Murde Mental]

So Evan, what's the update? Miserable failure or cosmic coolness?

[Evan Byrne]

Never got built, Never found splined cranks short enough.

[Murde Mental]

**holds back laughter**

that might be some things you'd want to check before...

**serious**

keep at it I guess... don't let all that stuff lie all over the place and collect dust... you payed good money for them.

[forrestunifreak]

Originally posted by Evan Byrne
Never got built, Never found splined cranks short enough.

Ha really? I thought you had some on the way.......

How short we talkin about? Couldnt they just be...a little long?

[Evan Byrne]

I dunno, some miss calculation along the way, iv got a brand new Qu-Ax hub siting here.

[forrestunifreak]

Hmmm, that stinks. You sure there's no short cranks anywere?:confused: huh.


I've always wanted a 22" trials uni.......20" is too small to ride any distance, and 24" is too big for trials.....22" would be cool.

[James_Potter]

could you just use cotterless? not as strong of course, but for a 16" uni, they won't need to be that strong anyway....

[Evan Byrne]

Yes, I did build a 16" street uni with cotterless cranks, i used a suze hub, united 89mm cranks, alex double walll rim, sun frame, and Kh seat.

[James_Potter]

Originally posted by Evan Byrne
Yes, I did build a 16" street uni with cotterless cranks, i used a suze hub, united 89mm cranks, alex double walll rim, sun frame, and Kh seat.

and?
how'd it work out?

[redhead]

PICS??

[Evan Byrne]

Fine

[redhead]

kool