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That was the approach I was considering but do not have access to welding capability. Without a strong weld, I'd worry about failure of the cross beam through the relatively thin-walled main tube. Seems like a recipe for a stress riser that would be repeatedly worked with a good fraction of...

I think it is fixed now. Holler if not. Thanks Ray

So I decided to cobble up a simple seat post that demonstrates what one can do while waiting for CB to source some new design. I used only readily available parts that require no complex machining , welding, etc. The main tube is Aluminum with a 1-1/8 in diameter and 1/8 in thick wall. A...

That's pretty much what I was thinking for a crude fit check. To avoid too much stress, it would likely require a fishmouth transition on the spacer tubes to match the curvature of the large tube. Even then, this could be chockful of stress risers and may not be strong enough without...

I appreciate what Robert is doing and will be interested in how his new seat post version will work. You know, if you really want a steep recline and don't want to wait for a fix to fit-check a more aggressive seat angle, it looks like you could use a simple straight 1-1/4" tube to replace the...

Rotating the post does not work on this iteration. It looks like the upper part of the seat post has been lengthened from past iterations. As such, when you rotate it, it extends unacceptably close to the rear tire. Without rotating, it moves the attachment point closer to the seat and...

Hi Michael, I happen to have a 650b wheel set with an XD hub and a 10-42 cassette here, so testing on the Q45 is no big deal. My first approach was going to be a 10-42 with a 36 or 38 t chainring. That does limit the high end, but you pick up some by getting the 10t smallest cog. For me...

The Madison-Milwaukee trap (the Glacial Drumlin) is a favorite of local bikers. Generally I prefer the trails that go south or west of Madison - they go deep into the countryside. That's where I'll be testing the Q45 first, of course once we thaw out here! I'm still looking for some parts...

I was looking for a thru-axle adapter to mount my new Q45 on an indoor trainer, and so had to determine the specifications for the thru axles used. As best I can tell, the axles' sizes are: Front (drive): M12 x 1.5; length = 177 mm; 12 mm diameter; 1.5 mm thread Rear: M12 x 1.5; length =...

I was able to get some time this weekend to assemble my new Q45, and thought I'd show the first picture of one here. The build went smoothly following Robert's assembly video for some details. There were no serious hitches, but I did note that several threaded holes (especially for the rear...

Looks like mine is scheduled for next Tuesday. Time to clean up the workshop...

Well, apparently the new Q45's have arrived at Cruzbike and they'll be shipping them out over the next several weeks, per a notice from Maria to all pre-order buyers. So, we'll soon be able to close out this thread speculating on what is coming to new threads discussing the new bikes with...

I've had no problem using a Saris/CycleOps Fluid2 wheel-on trainer with my S30. And yes, you can orient it properly so that the trainer spin direction is correct. Just locate the resistance unit under the front of the bike. It does help to use a road wheel with a 130 mm dropout width so...

Time to replace my old Q559 that I sold last year. Ordered an orange one!

Have you just tried getting one from Cruzbike directly? They’ve been very good with ordering spare/replacement parts. It’s worth asking...

Oh great. Another perpetual motion machine... Gravity is a conservative force; energy is conserved. No input of energy = no additional motion. It may be that it is designed to move forward if you bounce up and down on the system. But then you are providing energy by working against...

Thought I'd throw a photo of mine into the discussion also. I think the S30 is the sweet spot of the Cruzbike road bikes, and too easily forgotten. It is great for long distance road rides. I set mine up with a 1 x 11 SRAM drivetrain; a 10-46 cassette with a 39t chainring; and a Volae carbon...

It is as Doug described. I've used both sizes (130 and 135 mm hubs) on my S30. Sorry about the earlier confusion.

For the last iteration of the S30 (without front suspension), a 28 x 700c tire will fit. 32x700c is too wide.

Agree. The S40 is fine with a 42-584 or 42 x 650b. Essentially the same size as a 23 x 700c but very smooth. Ray