Q series wheel sizes?

C

Crog Welly

Active Member
Has anyone put 650b wheels on one of the adventure series? If so what size tire fits?

(I recently sold a Silvio which was too advanced for me. In completing the sale I rode the buyer's Sofrider 10 miles back to his office; following along the Silvio driven by new proud owner. The Sofrider was great fun; easy to imagine commuting in traffic with one of the adventure series. This CZer had put 700c and 28mm on the Sofrider.)
 
benphyr

benphyr

Guru-me-not
Someone has put 650b wheels on a Q but I don't remember the thread right now. It was a pretty sweet looking bike if I recall.
 
super slim

super slim

Zen MBB Master
benphyr said:
Someone has put 650b wheels on a Q but I don't remember the thread right now. It was a pretty sweet looking bike if I recall.
Click to expand...
From different threads the:-
Q v1.0 can take 26"*1.3" front, 26"*2.0" rear
Q v2.0 can take 26"*1.5" front, 26"*2.0" rear
Q v3.0 and QX100 can take 26"*2.0" front, 26"*2.3" rear, 650B *42 F+R, 700C *25 F+R
Q45 can take 26"*2.3" front, 26"*2.3" rear, 650B *42 F+R, 700C *25 F+R
 
rfneep

rfneep

Well-Known Member
So that was my build. A very nice smooth ride which I had for a while. I also ran that bike with a 26" x 2.3" wide Compass Rat Trap Pass tire on both front and rear. The 650b's were best for running on pavement, but the Rat Trap Pass tires were magical on crushed limestone paths and rutted trails You could almost fly over the trails. I'm searching a means to recapture that feeling now with my S40. It's a work in progress....

Ray
 
dule0911

dule0911

Active Member
Has anyone tried fitting 700x35c or 700x42c on a Q45? Or is 700x25C the maximum width?
Some autumn sale in progress at a local bike shop so thinking of getting a second set of wheels, but don't like narrow tires because of bad roads & comfort. The rear wheel is not an issue because it's suspended, but the front I wouldn't like to be much harder then it is with the stock 559x42 tire... I weight around 200 pounds so more rubber is always welcome :)
 
dule0911

dule0911

Active Member
Continental Mountain King 26x2.2 on a Q45. Tried it a couple of days ago (isolation boredom, so why not, already had them)


They fit on the stand if I push the wheel to the center of the chainstay and tighten it hard with the QR (photos are made after this moment). But once I try to ride it, after 2-3 pedal strokes the wheel tilts to the left and rubs on the chainstay with each stroke .
Is this ok? Unfortunatelly didn't take pictures while it rubbed, but it rubs on the non-drive side of the chainstay - it can be driven, it just rubs slightly.
It seems as if the wheel is tilted to the left so not sure if this is fixable or not - I tried mounting the wheel several times and the result is always the same. I use the QR without the centering springs, maybe I should try it with them? I know that the tires are outside of the officially recomended 2.0 width, but it's strange to me that on the stand it fits, but once I apply force to the pedals, it starts to rub. Other then the chainstay, I have no clearance issues.

Or just get some narrower 2.0 tires and call it a day? :)
 
Robert Holler

Robert Holler

Administrator
Staff member
Is there clearance on the other side of the stay? The wheel just might be dished a bit off to one side more than the other. Those are some big tires for sure. Wider rims might help the profile of the inflated tire to fit better.

Also the springs do nothing on the front of a CB - if you put them in they will only become jammed in the holes and get bent up.
 
dule0911

dule0911

Active Member
On the other side of the stay there is plenty of clearance, too bad I didn't take a picture, I might do the swap next weekend and take some, the curfew might still be in place in my area so I will have time :)
The tires are big, but it seems they might fit, just need to find the proper setup. The wheel might be dished - I will measure the distance from each chainstay arm tomorrow to see if it's equal.
About wider rims - you might be onto something there. I tried this with the stock rims which are on the narrow side for these tires. Tried several times to position the tire better on the rim (deflate, position, reinflate, repeat), but only got marginal improvements.

What is the width of the stock Q45 hubs? I have some old mtb wheels, but unsure if they are 130 or 135. If they are 135, do I need spacers or not? This is for just a test fit to see if the dishing of the wheel is a problem.
 
Robert Holler

Robert Holler

Administrator
Staff member
They are 135 hubs. Looking at the pics I imagine you could dish that wheel over a bit and be OK. I wouldn't recommend that though without a truing stand.


Robert
 
benphyr

benphyr

Guru-me-not
Also, if you are trying to adjust the axle alignment with the quick release to hold it in place it will probably eventually set down into the proper position bedded completely into the fork. Better to fix the wheel.

I had a wheel that had to have the cone of the hub replaced. We couldn’t find an absolute match in the parts bin but the closest was matching in threads, cone shape, diameter -every dimension except it had a different dust seal so that part was a touch thicker which when reinstalled meant that the wheel was shifted over slightly. I then had to readjust the hub position on the axle by shifting the cones over just so slightly. The final result is a wheel that is true and centred. It did take a little work though and because of the very small tolerances of disc brakes and very slightly different positioning of the brake calliper now with the chain stays stretched a tiny bit wider the calliper needed to be readjusted.
 
dule0911

dule0911

Active Member
Yeah, I figured that since whatever position I put the QR in, it sets once I pedal into the only possible position and that's it :)

The wheel is moved a bit to the left, checked today with the stock tires - same thing, only there is much more clearance left so it's a non-issue. Will dish the wheel in the next few days/weeks and try mounting the big tires again :)

Thanks for the help.
 
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