2013 Shimano Road Wheels – New Aero Clincher, Tubeless & Tubular Options

Spoke hole count for the 9000 series hubs? Do they come in 16f 20 R as to replace the older shimano wheelsets?

If the C24 is 24mm wide and is the only tubeless option, then that should make things interesting considering how small Hutchinson Tires run.

I have a set of 25mm Hutchinson Intensives that actually measure 23mm. Their 23mm measure around 22mm. Even on a wider-profile rim the most the 25mm comes out to is about 23.5mm. While I think wider-profile rims are the way to go, Hutchinson needs to get their dimensions to be more accurate or you’ll be dinging the rims on the Shimano C24s due to improper tire coverage.

I’m saddened by the extra dish these wheels really have to have in order to support 11 cogs. The redeeming factor is the Opti-bal. – Or double the spokes on the drive side. This gives some tension to the non-drive spokes- and widening the flanges 7 m.m. does not help in that respect. I don’t know how the C24 versions will hold up without the 2 to 1 spoke ratio, the wheel has a ton of dish not just because of the wider freehub, but because they moved the left flange out. It makes no sense at all and I can’t imagine that offsetting the rim holes will be enough to keep decent tension on the left spokes.

The other wheels with Opti-bal scare me as well, at least judging by the photo. Those radial left spokes are attached to a left flange that looks bigger (larger) than the drive flange. If that’s the case, the left spokes are going to wind up and possibly break. All Shimano had to do is to make sure the torque goes to the drive spoke by having a slightly larger drive side flange. Then those left spokes could just sort of sit there and ‘triangulate”….. I suppose Shimano has calculated the tension of the spokes when under load, but I wonder. Any spoke on a larger flange is going to travel farther in one revolution-and the torque load will go with it

Even thought the tensions- starting out are higher on the drive spokes, I think it would be better to ‘know’ that those drive side ‘dynamic’ spokes, or ‘pulling’ spokes are taking the torque load. Would love to hear what Shimano thinks about that.

A bit disappointed as I was really hoping for a clincher version of the C75. I know the pro’s walk away from triathlons if they get a puncture etc… but I would have liked to be able to have the benefit of being able to change the tire in a reasonable time. I would also like to point out that for every pro that rides these wheels, there will be hundreds, if not thousands of punters who wont want, or wont care about having a tubular option. Is there a reason for this?

No reason for shimano to approve their roms for weight weenie disposable Stans garbage. Hope they steer wide and clear of that crap.

Please confirm the width of the C24 and C35 rims.

Darren D: Campagnolo makes the following claim for its latest Campagnolo/Fulcrum wheels with the Mega G3 hubs (larger drive side flange): “MEGA G3™ eliminates vibrations even with “heavy” cyclists”.
I think it is therefore reasonable to assume that some heavy cyclists experienced vibrations with the previous versions? Having said that, I have ridden Fulcrum 1 and Zero for the past four years and have experienced absolutely no adverse sensations.

More importantly, can I fit a Dura Ace 11-speed cassette to my 2012 Fulcrum Zero wheels (competition special edition) or will I have to buy a new freehub body? Are they available? Many thanks

Mike: That’s really kinda interesting. I’m having issues with my set of racing Zeros. I had to take the front one off, too many issues on high speed descents. The vibrations/instability were too much of an issue, and if you throw a little wind in the mix, well just make sure you said your prayers before you left. Now I must admit I’m a little on the heavy side around 193 lbs, but it’s winter so not as much riding going on as I’d like, but I’m still within Fulcrum’s recommended limits:

If you weigh 109 kg/240 lbs or more we advise you do not use this product.

I think even for my weight they are not suitable, when I get on my bike I can see the wheel move closer to the front break pad, so the lateral stiffness isn’t there. I can see the wheel wobble slightly as I ride it too (and I have taken out as much lateral play as possible). I’m sure they’re just lovely for someone who’s welterweight though 🙂

Anybody who knows the exact differences between for instance WH9000 C35 and the cheaper RS81 C35? Likewise for the WH9000 C50 and the RS81 C50?

I have a wobble too with my 25 wide 50mm carbon front tire at high speeds 45 to 55 mph. Scary as hell. I am riding an sworks so my frame is very stiff. My old tubular 50s never had that problem.