disc brake or hydrolic brake?

[Tirving]

Originally Posted by Nurse Ben

Two words: Crank Creep

The other issue is clearance of rotor bolts, which has so far caused a bunch of probelms for folks who are adding them aftermarket, so this could improve with the new KH frame or it could continue to be a problem.

In the bike world, hub mounted rotors are the standard, for unis they work just as well, they are better protected from UPD's than a crank mounted rotor, and no matter which crank you want to use the hub mounted rotors will work. With the crank mounted rotors you have the choice of one crank, one Q factor, and five sizes.

I know you use the crank mounted rotors, but honestly there is no way they are better and there are obvious ways that they are worse. In only one case is the crank mounted rotors hold sway and that is on a geared hub, otherwise it is a retro fit and as such there are retro issues.

If you would just build your own wheels, then swapping hubs would be easy

Get the hub mounted rotors, it's a no brainer for a new uni.

Again, on unicycles, this assumption is too soon. I have not had to adjust my MountainUni Sinz system since I set it (which took a while to get perfect) 1.5 years ago. How are my cranks going to creep when they're properly butted against spacers? I understand the theory, but in practice, I'm not sure it's an issue on unicycles.

Another assumption...... I DO build my own wheels

You listed disadvantages, I'll agree with these, but in practice, the crank mounted systems are structurally as good as the hub mounted ones.

None of the disadvantages you listed apply to me, I have exactly the cranks I want in exactly the length I use. I ride hard and crash a lot, I have never had serious damage to my rotor. Much less than rotors on various Mt. Bikes that I have crashed on. On crank mounted rotors, it's much easier to true them on the trail.

I'm not telling anyone that one is superior to the other, I'm refuting your absolute bias. It seems this happens a lot with you about pretty much every piece of uni equipment you purchase

'fat tires are better that thinner tires', '29-er is the best size wheel for muni', 'Guni is the way to go', 'I don't like Guni anymore, muni 36-er is the new wave'. Etc. You're passionate about the equipment you purchase, that's good.

I'm just trying to give an unbiased opinion about crank mounted discs. I might build a wheel with a disc hub and try it out on my frame, if it works, I may like it. I'm not 100% sold on dished uni wheels, asymmetrical wheel builds on a uni just seems wrong to me. This feeling doesn't mean I'm right.

[kahunacohen]

So if I want hub disc, can I use a KH hub? Are they compatible? Does it have to be custom built?

It's all so complicated, I may just go with the rim brakes.

[jaco_flans]

The only hub disk available now is the Nimbus Oracle (?). If you get the new KH Spirit cranks, you can fit the disk on the crank and you can use any existing ISIS hub. You will have the disk mounted on the outside of the frame.

[Nurse Ben]

Disc hubs are being produced by Nimbus (3 styles), Mad4One (2 styles), and QuAx, with more to follow.