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Truvativ HammerSchmidt
NB: Originally posted elsewhere on the Global Riders Network and appears via syndication.
In case you can't immediately tell by the pictures this is a crank/BB package that replaces two front chainrings with an internal mechanism. You get "equivalent to a 22/36 or 24/38 chainring" but with more clearance (and what looks to me like more weight, but can't find those specs).
Mostly of interest to DH'ers (with lots of $$$).
There's a flashy marketing site here: http://www.magicmechanics.com/
And some spiel from NSMB here: http://www.nsmb.com/page/s/2585/truvativ-hammers...
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thats pretty cool though, you wont have the problem of the chain falling off the front rings too it seems
But all that effort for 2 gears... why not just house 14 gears in there like the rohloff!
Then you'll look like a real SS without a massive fat hub
Loz
As described in the NSMB website, some immediate advantages include:
1. more clearance
2. no need to run a chainguide
3. no exposed chainrings
4. the ability to shift under load
5. the ability to shift while you're standing still - without spinning the cranks.
Nice!!
If you read the article, it states there is a free ride version and an all mountain version. No mention of XC, so that generally means to me it would be a bit too heavy/bulky on a XC bike. Fair enough I suppose, not all bike components are transferrable across all models of bikes.
Lastly, you don't need a large chain ring on those types of bikes anyway, so that would have been wasted weight. And because there is no chain guide any more, there is a few hundred grams of weight saved there. With another decade of redesign, maybe it will be small and light enough to use 3 rings on a XC bike? Who knows?
I like this!
Can someone buy me one? I'll have the free ride version.
..m the price, Son....
Bernd
No reports on final prices in AUS$ that I saw. They quoted US prices around $800 which will likely mean more than $1000 in AUS. That's some expensive kit. As Rob said, those with the $$$ need only apply.
Here you go:
http://bikemag.com/news/freshproduce/8-12-08-pre...
...basically is not much on those kinds of bikes anyway.
Well for XC they will have to develop some model that doesn't require the ISCG tabs first. Very interesting though.
Now to find a way to get rid of the rear deraileur at at reasonable cost! (Yes I know about the Rohloff Bernd)