Truvativ HammerSchmidt: Shifting Into the Future
October 26, 2008 by Matt Brady
Filed under Uncategorized
The concept has been out for years, internal shifting. We have seen it in internal hubs and even on Honda’s prototype downhill bikes. Now Truvativ has stepped into the game and brought internal gearing technology to the mountain bike masses. The Truvativ HammerSchmidt replaces the normal front derailleur with a completely internal drive system.
There are two versions to be available, one for all mountain and one for freeride. Truvativ discovered that the majority of riders in these categories used only two chainrings, so the system offers two selectable gears. It also provides chain retention to eliminate the need for chain guides, and a shifter, which is a near clone of SRAM’s X.0 shifters. That makes one think about the possibility of using it for single speeds/dual speeds.
One of the benefits to the HammerSchmidt is seamless shifting, even while shifting backwards or under load. The compact design also increases the ground clearance substantially, as well as eliminates the potential for bent and broken teeth on chain rings without a bash guard. Furthermore a constant chain line means you can use your full rear gear range with either of your front “chainrings.” No more worrying about cross chaining with the Hammer! For compatibility the HammerSchmidt offers a variety of bottom bracket sizes and crank lengths, but it does require the frame to have ISCG tabs. Adaptors won’t work.
It is a breakthrough in design, and at an expected $700-$800 it seems the adage you get what you pay for holds true. But keep in mind this is the whole package; cranks, bottom bracket, and shifter. Plus you can kiss that wimpy old front derailleur goodbye. One negative to the HammerSchmidt is weight. Compared to similar crank and BB combos the HammerSchmidt runs anywhere from 100-500 grams heavier. Nevertheless an extra pound may be a worthwhile sacrifice for all of the benefits the Hammer offers. In the near future you can bet on seeing this technology become lighter, cheaper, and much more prominent in the MTB world. Watch out cuz’ the Truvativ HammerSchmidt is just the beginning!
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This post was written by:
Matt Brady - who has written 24 posts on Mountain bike product reviews, bike builds, trail reviews, forum, and tips – MTOBikes.com.
Born and raised in the Arizona desert, Matt loves all things outdoors. Always consumed by a passion to bring information based on different perspective he has pursued writing as a means to spread his approach to a variety of topics. Check out Matt's blog here: http://www.themusicmatcher.com/mattsworld
[...] say a big trend right now is the Hammerschmidt, people are trying to figure out how to build a Hammerschmidt into their frame, whether that’s something that I would use or not, I designed up a bracket [...]
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