RE: [rootsradicals] Re: 26 in. wheels
MessageSteel single speed Mtn bike frame, rigid steel fork, suspension seat post, single speed drive train up front, 8 speed nexus rear hub out back...add some lockable quick release skewers and you're good to go.An urban monster.-----Original Message-----
From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of majorhahn
Sent: Friday, July 14, 2006 10:15 AM
Subject: [rootsradicals] Re: 26 in. wheels
Wow thanks for all that great information. So what is the best set
up for the x assuming one is starting from scratch, where one wants
light steering and a steel frame for mostly road and city riding ? -
In rootsradicals@ yahoogroups. com, todd fahrner <fahrner@... > wrote:
> On Jul 13, 2006, at 11:20 AM, majorhahn wrote:
> >> I have heard of people running 26 in. wheels, like big apples,
> > in. mountain bikes which have been xtracycled with disc brakes.
> > anybody actually done this and is it really a superior
> > to say running the same wheels on a 26 in. bike? Are there any
> > downsides? Especially in the handling and feel, like do the
> > hit ground when cornering, does it affect acceleration?
> > Robert
> When you put an Xtracycle on a bike, one consequence is that more
> your weight will be borne on the front wheel than before. If the
> steering felt light before, it will feel "more stable" (heavier)
> after the conversion, sort of cruiser-ish. If it felt heavy to
> with (such as MTB steering tends to feel to road-bike riders
> then the feeling can be really heavy or "floppy", with a tendency
> pull into turns like a chopper. Your mileage may vary. Many
> like the feel of their converted rides as much or more than the
> original. I tend not to, because I like really light steering.
> In addition to changing the fore-aft weight distribution, there
> be geometry changes, notably head and seat tube angle changes,
> depending on how your bike differs from the bike Xtracycle picked
> normative when they designed the thing. With 26" (mountain)
> the changes are likely to be modest.
> However, when you put an Xtracycle on a frame designed for 700c
> ('29"') wheels, the geometry changes are more substantial. The
> and head angles are slackened, and the bottom bracket lowered.
> lower BB means it's easier to get a foot down, which is nice on a
> laden bike -- you don't have to lean it when you stop and remain
> seated. The slacker seat tube angle shifts more of your weight
> onto your butt and off your hands, which I also like for comfort,
> it also makes it easier to get a foot down (your hips are rotated
> further back on the BB axis). But the slacker head angle
> the chopper steering feel by increasing "trail" (read about trail
> here: http://tinyurl. com/oe6mq ; play with it here: http://
> www.kogswell. com/geo.php ).
> So, I think it's a good idea to contrive to reduce the trail on
> Xtracycles generally, and on 700C/29" Xtracycles in particular.
> way to do it is to use smaller wheels than the frame was designed
> for. This is easy with disc brakes. Another consequence of
> wheels is that the BB is further lowered, so there's a risk of
> strike if you overdo it. You can raise the bike back up part of
> way by running extra fat tires. And this is a good thing with a
> mechanically suspended cargo bike anyway: air is no-fuss
> suspension, and the only kind at all for the load on an Xtracycle.
> Another approach is to start with a 26" bike designed for a
> suspension fork, and use a rigid, short fork (e.g., Surly
> with Surly 1x1 fork). This lowers the front end, effectively
> steepening the head angle to lessen trail. Swap in a layback
> and tall stem/bars to keep from pitching forward.
- Ken Heronheart wrote:
> Hello Juergen,I don't know.
> On Thursday, July 13, 2006, 2:21:59 PM, you wrote:
>> I run 26" Big Apple (x60 size) tires on my Xtracycle equipped MTB. The
>> ride on these tires is WONDERFUL.
> How well do the Big Apples do off-road?
> I'm not an aggressive trailCutting through the woods would probably be fine - on trails. The wide
> rider but I do regularly cut through the woods as part of one of my
footprint and possibility to run low pressures on this tire means you
will probably leave less evidence of your trek through the woods than
with other tires.
> Also, how do they do in snow?I probably won't know. In the winter I switch to Schwalbe Snow Spiker
tires. I would assume the relatively semi-slick nature of the Big Apples
probably wouldn't do so well in winter.