[firetoole]

I am making a pair but I can't figure out the spacing, so if someone could measure the spacing from
the center to center on the back 2 and the back center to the front center that would be sweet!

thanks

 

[Wumpus]

I have kreitler dyno mytes(2.25" drums)- rear center to center is 11"(28cm).

The front is adjustable since wheelbases vary. My front drum is about an inch in front of the hub. I don't think that you want to set the front wheel directly on top of the drum.

From Heidi's post:

Q: Are the rollers setup the same as traditional rollers (i.e. just a bit longer than the bicycle wheel base so the front wheel rides just aft of the front roller centerline)

A: Yes, though testing we have found that setting the front wheel axle about a centimeter behind the front roller axle works the best.

 

[LordOpie]

uhh, why you making 'em?

 

[firetoole]

uhh, why you making 'em?

yea I got some free printing cylinders from work 13x3.75" with bearings on both ends...
so why not

I will post some pics when they are done

thanks wumpus

 

[splat]

so why not

dam straight why not!

what are you going to use for a belt ?

Can't wait to see the pics

 

[Pau11y]

dam straight why not!

what are you going to use for a belt ?

Can't wait to see the pics

Here's a thought. If you can't get a belt on, use some 24T chain rings and ring spacers and bolt them directly to the side of the drum. Then you can use a bike chain. You can put an idler pulley on the frame to take up the slack. It'll be a bit noisier, but you should have everything needed on hand...
This way, you can change the ring T count for resistence...lowest being 22T, 28T on the large side... You can also mix/match to custom the resistence...

 

[Pau11y]

I have kreitler dyno mytes(2.25" drums)- rear center to center is 11"(28cm).

The front is adjustable since wheelbases vary. My front drum is about an inch in front of the hub. I don't think that you want to set the front wheel directly on top of the drum.

From Heidi's post:

Does the slight offset help w/ stability? I've got mine set axle over axle. It's a bit twitchy until I get above 20mph...

 

[Wumpus]

Does the slight offset help w/ stability? I've got mine set axle over axle. It's a bit twitchy until I get above 20mph...

I think it does. I don't have a speedo. I can ride pretty slow w/o any problems(32x23 @ 75-80rpm -- just a guess on rpm).

 

[Pau11y]

Kewl thanx. I'll give it a go tonight and check it out.

 

[firetoole]

Here's a thought. If you can't get a belt on, use some 24T chain rings and ring spacers and bolt them directly to the side of the drum. resistence...

the cylinders I got have 111T gears on one side so I am going to try and find one that will fit