Results 151 to 175 of 231
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10-16-2018, 11:31 AM #151
I think people have realized that proper leg position to get maximum power and efficiency matters less on a mountain bike than having a good body position to keep weight forward on steep climbs. Any efficiency gains are outweighed by the extra effort that it takes to keep from looping out on steep trails.
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10-16-2018, 12:34 PM #152
Google "the myth of KOPS" and see what you find. Road bikes would be using dramatically steeper STA's too, except they're literally banned by the UCI. Hour records have been invalidated after the fact and tri bikes generally go steeper than UCI-legal--because they can. I find a steeper angle is more efficient pretty much any time I'm pushing the pedals hard, and obviously moreso when climbing. It may be coincidental that slack HA's need steeper STA's for better weight distribution, but I haven't found a downside in the 76-77 degree range. The Yeti SB130 and Spot Mayhem are good examples.
A few years back Scott had a switch on their Genius bike that would adjust the shocks and tip you forward about a degree. It felt almost as good as dropping a gear lower (too bad the bike sucked at fun things).
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10-16-2018, 12:47 PM #153
Uh oh, now we're going to get droppers that move both vertically and horizontally, so you can go steeper for the climb. ;-)
Actually, I'm sure it's already been tried.
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10-16-2018, 12:55 PM #154
Yup. Curve the seat tube so it's offset rearward but tip the top forward. If you want a lower effective angle when dropped; both those bikes had me wondering if that would be a good idea or not.
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10-16-2018, 01:46 PM #155_______________________________________________
"Strapping myself to a sitski built with 30lb of metal and fibreglass then trying to water ski in it sounds like a stupid idea to me.
I'll be there." ... Andy Campbell
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10-16-2018, 01:49 PM #156
Added bonus of steep sa is when you drop the dropper it’s easier to get behind the seat on the downs
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10-16-2018, 01:56 PM #157Banned
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10-16-2018, 02:06 PM #158
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10-16-2018, 04:31 PM #159
This was like 20+ years ago or something, I remember watching some old video of people doing "extreme mountain biking" and it could just be my poor memory confusing someone with a Moxey showing how it articulated without the elastomer in place, and mixing that up with a memory of someone adjusting their QR seatpoast in the same video. But the idea of a QR-lockable Moxey or other parallelogram type post, that could be remotely actuated like a dropper has recently intrigued me as a more biomechanically efficient dropper post design that also gets the seat out of the way of the inside of your thigh/knee when cornering.
_______________________________________________
"Strapping myself to a sitski built with 30lb of metal and fibreglass then trying to water ski in it sounds like a stupid idea to me.
I'll be there." ... Andy Campbell
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10-16-2018, 04:42 PM #160
So many negative things with those. They’d swing back and limit how far you could get back and low, weight and up high, they all broke, catapult effect
They’re have a resurgence on commuter bikes. Good application there, on hardtails where you don’t go down steep trails. A comfort thing for your ass when you don’t need full suspension from your feet up for traction
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10-16-2018, 07:13 PM #161
They'd also result in a lot of back tire - seat conflicts. Longer travel bikes buzz seats enough as it is.
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10-16-2018, 07:38 PM #162Banned
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10-16-2018, 09:36 PM #163
I remember this too. Definitely had at least three positions, including a forward one, and was cable actuated IIRC.
To address your comment about steep seat angles being a side effect of long reach and slack head angles, maybe partly. If so though, it's a happy coincidence because it undeniably makes things a lot better. I'd say it's more that the long reaches opened up that space to make it possible. IMO today's heavy, slack, long travel bikes still climb comparably or better to yester-years' light weight XC bikes with steeper head tubes and slacker seat tubes.
In terms of these trends creating a less efficient pedal position r/t the bottom bracket, I thought this too at first. Then I realised the seat tubes on TT bikes are as steep as they can legally make them and those guys are putting down serious power. As mentioned above, same with Tri bikes, and they're all about efficiency.There's nothing better than sliding down snow, and flying through the air
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10-16-2018, 09:46 PM #164
It was called the PowerPost.
Forum Cross Pollinator, gratuitously strident
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10-16-2018, 11:17 PM #165
Dude!
There's nothing better than sliding down snow, and flying through the air
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10-17-2018, 05:52 AM #166Banned
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- Sep 2017
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Just to be clear, the main driver to these geometry changes is wheelbase. If you stretch wheelbase by 6" in your average trail bike while simultaneously going to a more upright riding position, you need to compensate with a slack head angle, upright seat tube, short stem and longer reach dimension - because people's dimensions haven't changed.
In the 90's, hardtails typically had a 41.5" to 42" wheelbase. Lots of these new bikes are at nearly 48". I'm perfectly happy with the stability of 46" while still keeping some maneuverability.
As far as climbing goes, I don't think anyone who is making the claim that new bikes climb better has ridden a 90's XC hardtail recently.
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10-17-2018, 08:35 AM #167Registered User
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Wut?? Steep with no dropper on a ht FTW. I also use a suspension post, this https://cirruscycles.com/products/kinekt-2-1-aluminum
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10-17-2018, 10:25 AM #168
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10-17-2018, 10:38 AM #169
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10-17-2018, 12:59 PM #170
Can’t do the hard tail . I’m too beat. That thing gives me slashbacks of demoing a “softride” bike in the early 90’s. Going along the flat”this feels cool, sooo comfy”. Drop into the first switchback and”holy fuck I almost just died”. Can’t believe I didn’t get fired out the front end. That post you have looks refined and might have some dampening but at that weight I’d be looking at a plus size rear tire or light weight full sus. My definition of hardtail in my og comment was meant as “commuter” . I’d have that post on an e-commuter
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10-17-2018, 01:08 PM #171
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10-17-2018, 01:21 PM #172
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10-17-2018, 01:34 PM #173
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10-17-2018, 05:22 PM #174Florence Nightingale's Stormtrooper
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10-27-2018, 04:22 PM #175Skiing powder worldwide
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So pretty frustrated right now. Dropped the bike off and sent the shock back to cane creek 3 weeks ago Monday. The shop calls me 10 days later. Cane creek just got the shock, so obviously someone forgot to ship it, because it doesn’t take 10 days to get from CO to the east coast via Fed Ex ground.
We get the shock back Friday, two days ago. The bike was supposed to be tuned and the front Pike Serviced and the needle bearings put in. None of that was done so it still sitting in the shop because thy are short staffed.
So I get a call Today and when they tried to put the needle bearings in, they bearings went flying all over the floor so they ruined them. When I ordered the needle bearings I also ordered the $30 tool, so they could install it with no issues. Guess That didn’t work.
So 3 weeks and Still no bike.
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