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DavidGuerra ikeizer's article
Jun 25, 2015 at 7:07
Jun 25, 2015
10 Bikes From the 2015 Trans-Provence
Purple is awesome, I'm liking it more now than in the nineties. The Santa Cruz does look girlish, though, probably as intended. The frame and fork would need to have a darker colour.
DavidGuerra paulaston's article
Jun 22, 2015 at 7:44
Jun 22, 2015
Scott Launch 27.5" Plus Bikes
" I run a 2.2 rear and 2.4 front and if I put 28 psi in the rear I need to put 30+ psi in the 2.4 to get the same footprint." Differences in carcass rigidity also matter and that must be what is confusing you. That and rim width, are your front and rear rims of the same width? I have been using two tires at the front, a 2.4 and a 2.35, which both feel solid and non-squirmy with 20-22 psi or even less. And at the rear I used to have a 2.35 which I needed to run at 28psi to avoid squirminess, while with another 2.35 tire from the same brand 25psi did just fine. These are all tubeless; in my pre-tubeless times I used to run 40psi front and rear. Iin principle, for similar tires, having more pressure at the front than at the rear seems counter-reason for sure, because the rear tire is under a lot more weight, and so does adding more pressure to the larger tires. Usually smaller tires need a lot more pressure.
DavidGuerra paulaston's article
Jun 21, 2015 at 15:37
Jun 21, 2015
Scott Launch 27.5" Plus Bikes
Pretty confusing conclusion. Grip is better, yet the bike is not a clock-beater because of the 1% increase in rolling resistance? Is this supposed to be a road bike or something?
DavidGuerra darkalleydownhill's photo
Jun 4, 2015 at 4:49
Jun 4, 2015
Congratulations, you got yourself a nice strong fork-breaking frame.

DavidGuerra Margus's article
May 1, 2015 at 3:33
May 1, 2015
DH Photo Epic - Sea Otter 2015
@ bikeeagle: DH means downhill. Down the hill. Going down with a bycicle. Even if it's a bike with no suspension at all. 6" though, is already a lot. The first Boxxers had 6" of travel, double crowns and 20mm axles. But I guess those were all mountain forks, by your definition.
Selling
Mar 24, 2015 at 8:55
Mar 24, 2015

$ CAD

DavidGuerra mikekazimer's article
Feb 16, 2015 at 15:45
Feb 16, 2015
First Look: OneUp Components DH Block
There is another advantage in keeping the extra range of 9 or 10 speeds for dh, which is that one may use bigger rings up front. I grant that I am not a "spinner", but it seems awfully strange to see dh bikes with 38 teeth rings when I can even max out a 44 teeth on a (moderate) climb. The use of these small rings up front started rising as the trend of using road cassettes for dh started spreading, as the biggest cog of a road cassette was often too heavy to use with a decently sized ring up front. So the end result was that the psychological illusion that using a road cassette would give you more speed because of its heavier range, ended up reducing the whole drivetrain to a lower multiplication ratio, and to a lower possible speed. So that now a downhiller has to have a furious-rabbit spinning pace to catch up with a cross country bike on a downhill.
DavidGuerra mikekazimer's article
Feb 16, 2015 at 15:11
Feb 16, 2015
First Look: OneUp Components DH Block
The use of road cassettes for dh seems to me like the stupidest thing ever, absolutely incompreensible, and it boggles my mind how even bike manufacturers include them on their bikes. If you want to use a shorter chain, just do it, no need of using a road cassette and having to shift two or three gears at a time. Just limit the derailleur and use only the smallest cogs. No need for this device either, the bigger cogs do the same job as this, preventing the chain from moving into the spokes. Me, I actually prefer to keep the chain long, it's not really a problem, and the extra range can be useful at times. Besides, when going down I won't likely shift into the bigger cogs, so the chain won't be near the spokes anyway. And as for 7-speed drivetrains, they are only an advantage if the hub moves the spokes into the place where the bigger cogs used to be, centering the rim and equalizing spoke tension on both sides. If this is not the case, the only thing 7-speed does is create an extra gap into which the chain might fall.
DavidGuerra paulaston's article
Feb 12, 2015 at 7:32
Feb 12, 2015
Pole Rinne Ylä - Review
"If you exceed 100% of AS you are extending the swingarm by every pedal stroke". What? Pedaling will never ever extend the swingarm. Depending on the pivot position the effect will either be neutral, or it will push it either up or down, to compress or de-compress the shock. But a pushing action can't possibly result in an extending action. Zero interference of pedaling with the suspension occurs when the pivot, either physical of virtual, stands on the chain line or on its virtual continuation. With this design, the force exerted on the chain will squash the suspension. The suspension will absorb a part of the pedaling force and when it releases it, the effect will not translate into further forward motion. So the way to pedal with this bike is to keep the pedaling force constant so that the shock remains compressed. As soon as it de-compresses, you will lose energy again when first pushing the chain, as you will have to compress it again before the full pedaling force reaches the rear wheel. Now, there may be some advantages to this design, but pedaling efficiency certainly isn't one of them.
DavidGuerra geebeebee's photo
May 12, 2014 at 7:01
May 12, 2014
I see a derailleur, but where the hell is the cassette? Is it even worth having a derailleur if you're only going to shift between such similarly smll cogs?

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