Sunday, August 5, 2007

Mountain Handcycles, a Comparative

Grove DH-X1 and the One-Off Titanium Flyer

Summary:
Grove DH-X1 and the One-Off Titanium Flyer


One-Off Flyer: Superior for All-Terrain
4 stars
Easier forward momentum
3-wheel system
20+ gears
Additional chest steering mechanism
All-terrain worthyNarrow body

Grove: Superior for Downhill Only
3 stars
4-wheel system
4-wheel suspension, 4 disc brakes
Comfortable ride downhill only
Widebody

Since the 1980s, handcycling has grown into a world-renowned competitive sport in which paraplegics, quadriplegics, and amputees can test their skills. But most handcycles are road cycles (no one seems to like calling them trikes, although that’s what they are), and it wasn’t until the mid-1990s that we started seeing mountain bikes adapted for this crowd.

In 1996, several downhill mountain bikes were brought to Steamboat for some mountain fun. These were some of the first models from Grove Innovations, with four mountain tires, four-wheel disc brakes, full suspension, and no “handcycle” power, just downhill fun. Since then we’ve had the chance to try them with the adaptive program in Crested Butte, and although the shocks and weight of the machines have changed slightly since 1996, the cost hasn’t seemed to.
The Grove DH-X1 is an expensive toy, hand-built at a custom shop in Pennsylvania by Bill Grove in the late 1980s, they revolutionized the concept of adaptive downhill in the summer time. But because of the lack of supply-and-demand, and the cost of making these unique bikes ($5,000 or more for one), few DH-X1s are in the hands of needy users.

But if you can get your hands on a used one or attend a workshop with one of the adaptive programs that owns one (see links below), do, because we had nothing but hair-raising fun on this downhill machine.

It’s a very comfortable ride with four Fox shocks and a soft padded seat. Your arms are at a comfortable distance and angle to the handlebars, and if all you’re seeking is some downhill thrill, this is definitely the type of mountain bike for you.

The only other downfall to this model besides cost is that it’s a downhill bike only, and others have been modeled after it, such as the Cobra A.C.E. in 2000, so you’ll need to drive it to the top of a mountain, or take a chairlift in order to use it.

Even though Bill Grove isn’t making these bikes anymore, look for a few grassroots companies popping up in the near future who want to bring this design, and the price of it, back to the average consumer.

As for its competition, we weren’t the only ones who thought the lack of versatility for the downhill bikes was a minor downfall worth rectifying. The One-Off Titanium Flyer has been climbing a long road since its early conception phase in 1996, and is the first handcycle to finally bridge the gap between mountain biking and handcycling. Designed and manufactured in Massachusetts by Mike Augspurger, this bike is totally different.

Its three-wheel system is reverse of most handcycles, with two wheels in the front and one in the rear. You’re also positioned nearly prone on the bike, and resting on a chest pad that is used to steer when you are pedaling. You can also steer with the handlebars when not pedaling. This pad is a little uncomfortable at first, especially if you’re a woman, but you do get used to it. Your knees are bent below and slightly behind you, giving your chest the frontward power it needs to crank up hills. The design of this bike is revolutionary, and has proven itself against the odds and doubts of many professionals in the mountain cycling field. Its highest recognition comes from a recently-released movie about three paraplegics who brought their One-Offs onto Utah’s White Rim Trail and biked the entire 110 miles in reverse, the more challenging loop, without any able-bodied assistance.

Its twenty-plus gear shift system has a wide range of “granny” gears for easier pedaling, and the rear wheel provides traction at a narrower maneuverability for single-track trails, something that is more of a challenge for the four-wheel downhill bikes. But that’s not to say it’s easy going. The weight of the machine is around fifty pounds, with twenty-inch wheels. Powering these toys up rocky, muddy mountains isn’t something you do unless you’ve got the arms to do it. But for those who don’t have a choice, the One-Off is an amazing machine; which earn Augspurger the MIT Inventor Award in 2001.

The cost of this cycle is still the same, however, around $5000, because it is still custom-made, and only 100-150 have been made in the past ten years, probably double or triple what Grove Innovations released. But you will likely begin to see One-Offs purchased for adaptive programs in the near future, as mountain biking for those with disabilities continues to grow.

To sum up, the DH-X1 is definitely more comfortable than the One-Off for starters, but the freedom that the One-Off provides is unbeatable. The One-Off is versatile, smaller, and even breaks down easily into two parts for travel.




LINKS:

Recent mountain bike clinic in Keystone: http://www.summitdaily.com/article/20070624/SPORTS/70624007

One Off Titanium: http://www.titaniumarts.com/

Grove Innovations: www.purplelizard.com/GIintro.htm