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Re: Coker vs GUNI performance on RTL?

 
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Old 23-06.-2008, 10:08 PM   #1
tholub
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Default Re: Coker vs GUNI performance on RTL?


jamessd wrote:
> Are there people that spin as fast on the geared unis as what they would
> on non geared unis? Or is the technique to just use the gears to keep at
> a slightly highly speed than fixed cokers?
>
> Next time I think there should be different categories for the unis, or
> something like that to make it fair - seeing as the course is good for
> Gunis there's no use people on other unis trying to compete .




In general, people on the GUnis are running longer cranks, so they
can't spin as fast; Chuck, who was clearly the fastest guy in the race,
was on a geared 36 with 150s.

The holy grail of geared unis might be a three speed, 1:1, 1:1.3, 1:1.7
hub with 170mm cranks.


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Old 24-06.-2008, 09:45 AM   #2
mscalisi
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Default Re: Coker vs GUNI performance on RTL?


I say boo to long cranks.

I'm not really qualified to say that it's possible to go as fast or
faster with 127mm cranks vs. 152mm cranks on a Schlumpf 36er since I
wasn't one of the fastest riders, but that's what I run, and I don't
think I'm going to switch back.

That being said, I performed pretty well with my setup. I managed 16th
out of 105 on the time trial which I'm pretty happy with in terms of my
athleticism. I was also able to power up hills in high-gear much better
than I expected.

152mm cranks suck in 1:1 mode except for super-steep climbing or MUni.
127mm cranks are MUCH more useable and I don't think they've limited
the terrain I ride in high gear in any significant way. Shifting is
also dramatically easier, and these two things combined significantly
improve the functionality of my 36er Schlumpf.

I predict that more people will move to shorter cranks on their GUnis.


Does anyone know what the Germans were running for crank length?



tholub wrote:
> In general, people on the GUnis are running longer canks, so they can't
> spin as fast; Chuck, who was clearly the fastest guy in the race, was
> on a geared 36 with 150s.
>
> The holy grail of geared unis might be a three speed, 1:1, 1:1.3, 1:1.7
> hub with 170mm cranks.



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><> Unicycle for (reducing the) Buddha <><

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Old 24-06.-2008, 01:57 PM   #3
siafirede
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Default Re: Coker vs GUNI performance on RTL?


mscalisi wrote:
>
>
> I predict that more people will move to shorter cranks on their GUnis.
>
>
> Does anyone know what the Germans were running for crank length?




Yeah,

I talked to them a while, they are all great guys and were more than
willing to explain their set ups.

2 of the riders (Arne and Jan) were running 36" schlumpfs with 125mm
cranks, and Johannes was riding 140s (since he is quite tall).

I believe that Arne did not use a brake on his geared 36er with 125s,
which sounds crazy since some of those downhills went on forever! I
wasn't using a brake on my geared 29 with 125s, but a geared 36 with
125s is another story.

I tried out Chuck's 36er in the 125mm slot and the 150mm slot. The
150mm slot felt so much nicer to me than the 125s, but I may just need
practice with the 125s to fully benefit from them. Shifting was indeed
quite easy still with the 150mm cranks, and I don't think that shifting
often would be a problem. The 125s would give you two fast usuable
gears, but you would be shifting more often than the 150s where you
would try to keep it in high gear more often.

Dan Hansen, Beau (on the last day), and Corbin were using geared 36ers
with 150mm cranks, and they were all quite fast on their machines.

The 150s on Chucks uni did seem too long on the flats and downhills, so
I would be curious to see how 140s would feel on it.


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Washington DC, Virginia, Maryland
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