Formula Splined Hub
 

http://zlogblog.com/2010/09/zlog-exc...nterlock-hubs/

http://bikeforums.net/attachment.php...hmentid=169006

Great idea for the no brakes crowd.

formula
 

nice.

hardware looks good.:thumb:

That looks pretty great. I'd give it a go.

I wouldnt buy a wheel just for this.

Its solves the problem of stripped cog threads (which isn't really much of a problem) but introduces a new potential problem. The miniscule rocking back and forth of the cog can loosen the lockring. I've seen it happen. A bolt-on cog is still the best solution.

I think this design with many more fine splines instead of the coarse design used on the Miche system should avoid the play that can cause loosening of the lockring.

ramp angle and machining quality probably means more than the number of splines.

my splined white industries hub stays tight. i have a brake, but i almost never use it and the bike has quite a few miles on it.

Why more proprietary******************************??
Really though, I would get behind bolt-on before this.

Cheers

+1
Why not do something like Sturmey-Archer s3x and have a splined hub with threads too?

Iso.

Meh, In many many years of riding fixed on the street, on my mtb, and on the track, I've never had a cog/lockring slip. This, much like the White Industries splined ENO system, is not really necessary or much of an improvement over the traditional cog/lockring setup.

Well, I've never had loosening / stripping problems with traditional screw on cogs either, but I can tell you that changing gears on the track with them is a PITA, and a splined system makes it a lot easier. You don't have to tighten the lockring nearly as much, and there is much less likelihood of stripping the lockring threads. You also don't need to mess around with a chainwhip and a compact lockring tool provides plenty of leverage.

I agree completely, while the old style isn't broken per say, it can stand a good deal of improvement. I think that the bolt on system has slightly more merits, but I've had only very limited exposure to either the bolts or the splines. Regardless, a measure of competition is a good thing.

I hope the price stays in Formula's traditional economical price range.... but otherwise looks good. I honestly would jump on these when they come out but I still have 2 wheelsets laced to phil that I still have to justify...

why cant they do the iso 6 bolt? to many standarts - afraid there are no cogs around for this hub in a few years...

The ISO 6-bolt pattern will only allow cogs as small as 16t, or 15t with special bolts. A better design would be a splined or slotted hub/cog interface with a few bolts holding it on rather than a lockring. Level is the only one doing this and it makes more sense than any of the other proprietary systems out there. No chance of slipping, stripped threads, or a lockring working loose, and the only tool it takes to change cogs is a tiny 1 inch long multi tool that fits in your jersey pocket.

http://farm4.static.flickr.com/3392/...82944f42_b.jpg

but smaller than 16t wears out my chain to fast anyways. iso disc seems to be at least kind of standard where the level and charge type might disappear in a few years and the cogs cost a way more too.

Yes, I know what you mean, but track riders use smaller cogs so its doubtful that ISO 6-bolt will ever become a standard for track hubs. I use an ISO 6-bolt set up on my FG MTB, and it works fine. However, the beauty of the Level type hub is that the bolts are not subjected to shearing forces, unlike an ISO six bolt setup. This means you can use fewer and smaller bolts. Its stronger with fewer parts and less weight.

Yes. The most common size cog for track racing these days is 14T, and I also use 13T and 15T on some occasions. I use a 16T for warmup. This works out to about 80gi for warmup and 90gi for racing. On the road, however, I have no need for anything smaller than 16T, since my gearing very rarely exceeds 70gi.

Bolt on still wins I think.

i agree about the lack of need for another proprietary system... and i would trust the WI version more than this one (though part of that reason is they make awesome stuff).


other than that, it is a very sexy hub.

Maybe they should make one side splined and one side traditional screw on.

Not even 1 tooth more, as in 17t? :cry:

yes as in 15 and higher!!

Check out this stash of cogs and chainrings.
http://farm4.static.flickr.com/3437/...298e9f76_o.jpg

Whats up with the 17T around the 13 peg?

chris hoy has to come somehow to the track too?!

http://bikeforums.net/attachment.php...hmentid=173445

just came along this hub. it's listed on the novatec hp but pretty wage description. supposedly 120 spacing and track hub. iso interface on both sides? where can i order one?
big fan of the bolt on cogs! does anybody knows more?

I've used Miche's cog+carrier system for, I think, three years of riding to the track, changing gears, racing, and riding home from the track. I would have just used both sides of a hub if I had a duplex-style hub, but I was using a Zeus hub, so I had to make do with one side.

It was definitely far preferable to using a chainwhip and switching cogs all the time. It never loosened or got any shimmy or play - the lockring, properly tightened, prevented the cog from moving with respect to the carrier.

The Miche system has an advantage over the Formula system - if something bad happens to the Miche system, you're out a cog and a carrier, probably, but if something bad happens to the Formula system, you may be out a whole hub.

That said, I'd definitely be interested in considering p a race wheel built around one of these Formula hubs. 28h laced to a Kinlin rim, 14 and 15t cogs for warmup and for racing at the NSC velodrome... that would be proper.