Have you been wondering "Why should I vote to give $500 million to an agency that bans us from our own public lands?" Did you notice that earlier this year, after mountain bikers threatened to vote against Measure WW, suddenly the EBRPD came to *us* for the first time since forever?
Tired...
We're back! And we're still doing what no other "environmental" or trail advocacy organization is willing to do: publicly oppose the EBRPD's $500 million bond measure until people on bicycles have equal access. Check it out:
http://www.bettereastbayparks.org
Apparently the EBRPD has taken...
There has been a lot of talk about how it might not be the best idea to give $500 million more to a group that does everything possible to keep us from enjoying our own East Bay parks and open space (i.e. PUBLIC LAND), but no one has been willing to focus the vague rumblings of discontent...
Really? The average production life of any post-square-taper standard has been about three years, because they all suck. If external bearing 68/72mm BB cranks are still the standard in five years I will eat a bug.
We've gone through Octalink V1, Octalink V2, ISIS, and now external BBs...
It doesn't matter whether the BB shell is wider or not, so long as the spindle length produces a 5mm wider chainline.
You don't even need weird parts. All Truvativ ISIS and square taper cranks, for instance, use a 113mm BB as standard, so all you need for the offset rear is a standard...
All these problems get solved so quickly if you just use a wider chainline...~10mm wider BB, offset chainstays ~5mm to drive side to get a dishless rear wheel with standard 135mm hub, stronger wheels, plenty of room for big tires, everyone wins except the people who nerd out about 10mm of Q factor.
If I recall correctly, 150mm hubs often don't have any more flange spacing than a 135mm hub, they're just dishless (or have a lot less dish). You could get the same effect by specifying an offset rear triangle if you have a custom frame built.
You'd still need the 83mm bb, though, which is...
AJP: motocross handlebars are clamped in two places, not just one. This is about a million times stronger than one clamp in the center, so going oversize isn't necessary.
If motocross bars had a mountain-bike style stem, both the stem and bars would have to be massively heavy and...
The reason the shop sees more broken Hayes brakes is because there are about 100x more Hayes brakes to begin with. Every bike in the world comes with HFX-9s stock.
People don't need new parts, they need to maintain their old parts. Of course if you swap out an old brake that's never had the...
<gets out the napkin>
Panaracer Rampage with 55mm casing width = 2374.6 mm2 cross section
Approximation: add an extra 10mm diameter from the 10mm extra width of the KH = 58.18mm wide on a KH = 2657.2 mm2 cross section
x2 / x1 = 1.119 = about 12% more air
The figure is probably...
I've never liked Genesis Geometry for that reason...not enough weight on the front. And the Bontrager short TT/long stem, as mentioned, causes the endo problem.
The other way to get more weight forward, of course, is to make longer chainstays. My BM Flyer has bizarre geometry by normal...
THe Monocog has an SS rear hub anyway...even if you put a derailleur on it won't do you much good.
The cheapest geared option right now is to find an 05 BM Flyer (Performance can probably still order them), which should cost you $350-400, and put gears on that. The frame is fully geared...
I ride a hardtail with 18.5" chainstays. The downside is that it's a little bit harder to lift the front. (Though if I had a suspension fork which I could bounce, I wouldn't care...IMO this is really only an issue on rigids.) The upside is that I don't loop out backwards on steep climbs and...
"Different wheel sizes turn in different arcs" is false. AFAIK, physics says that for a non-sliding turn, turning radius has to do with the location of your center of gravity versus the line drawn between the wheels of the bike.
I think people didn't like 24" wheels for a couple reasons...
SilentJ has it. Regular disc wheels are all dished. The point of 120mm is that you can add a spacer to a regular 110x20mm hub, build the wheel undished, and the rim ends up centered.
You can also use a 120mm hub for greater strength, but I don't know who makes those.
I leave it in there. People make fun of me sometimes, but I make fun of them later when they have to replace half the drive side spokes because the chain got sucked behind the cassette.
It's only happened to me once, but that was enough to make me never want to deal with it again.
bv: I think this is an important distinction. A longer wheelbase ought not to turn slower in tight turns, but it could definitely be harder to balance. You are correct that this should be the case whether the long wheelbase comes from a long chainstay, a long top tube, or a slack head tube...
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