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Old 2014-01-23, 12:49 PM   #1
GideupJimmy
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Advice for Cranks on Nimbus 29"

Hi all, appreciate some advice on Crank Selection for new Nimbus 29" Road uni about to purchase.
Prime intention to ride on "flat" path / road terrain and Speed is not the objective.

Am 2 months into Uni uptake with limited skill level still in development mode.
And upgrading from 24" cheap and cheerful eBay model I believe 150mm cranks

The Nimbus 29" comes with 125mm cranks.
Wondering whether to request longer cranks, and if so which size ?? and which manufacturer. ?? Or simply to run with the 125mm ??
As you would expect, am very excited about ordering and I want to modify cranks now if and where it makes sense to. .. Cheers and appreciate insights. Jimmy
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Old 2014-01-23, 01:21 PM   #2
Strokin99
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I use 150 on my Nimbus 29. I ride this muni on streets light trails. I have tried the 125's but they just seem too short. The 150's will give you more control. I would start with the 150's until you get use to the 29.
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Old 2014-01-23, 03:01 PM   #3
Eric aus Chemnitz
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Or you take KH Dual Spirits with two holes. Maybe 150/127.
But in my mind, the question is not which crank length is optimum for 29er on flat street but which length is comfortable for you? There are so many personal factors ... just try.
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Old 2014-01-23, 06:04 PM   #4
muni123
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If your not looking for speed and are still pretty new to the spot I would stay away from really short cranks. I think it's best to get something between 130 and 140.
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Old 2014-01-23, 07:37 PM   #5
kahunacohen
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Get dual hole. You may outgrow the 150s pretty quickly. I ride my 29 muni on 125s on the road.

Get spirits, 127/150, or if you want to save money try to find dual hole moments on the trading post or around the Internet.

150s on a 29 will get old once your skill increases.
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Old 2014-01-23, 08:27 PM   #6
Harley
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I as well would suggest duals 127/150.

The shorter the crank the less control you will have. but once you get used to your new 29er with 150's you just might want to try out the 127's.
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Old 2014-01-23, 08:32 PM   #7
Nate128
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I as well would suggest duals 127/150.

The shorter the crank the less control you will have. but once you get used to your new 29er with 150's you just might want to try out the 127's.

What about getting the 138mm since that'll be between the 127s and 150s?

Would the 138 (in the drop down tab upgrades) be the best since it's more speed than the 150s but more control then the 127s? Wondering myself.

Last edited by Nate128; 2014-01-23 at 08:35 PM.
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Old 2014-01-23, 08:43 PM   #8
Dane M
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It's really personal preference and riding skill/technique. You probably won't want shorter than 125 even for road, and you wouldn't want much longer than 150 or 160 for muni. That's why everyone keeps suggesting dual hole 125/150
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Old 2014-01-23, 09:37 PM   #9
LargeEddie
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What about getting the 138mm since that'll be between the 127s and 150s?

Would the 138 (in the drop down tab upgrades) be the best since it's more speed than the 150s but more control then the 127s? Wondering myself.
5.5"/137/138/140/whatever seemed pretty much ideal when I started riding my 28" road uni with just a couple months' unicycling experience. That's on the limit of what I could handle going down hills in my neighborhood without having learned to use a brake. Going up hills was never a problem.

110/137 seems like it might be a better dual-hole solution if udc can be talked into an upgrade not listed in the drop-down. Lots of folks ride on the road with cranks as short as or shorter than 110. With it not being a mountain unicycle, I don't see the usefulness of a 150 mm option.
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Old 2014-01-23, 09:53 PM   #10
Harley
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What about getting the 138mm since that'll be between the 127s and 150s?

Would the 138 (in the drop down tab upgrades) be the best since it's more speed than the 150s but more control then the 127s? Wondering myself.
As Dane mentioned it's somewhat related to preference & riding skill. I very seldom use my 150 crank option on either my 29 or 36 but if I'm having a bad control day then I switch to the 150's and things just seem to feel better.

At least with dual hole units (regardless of what combination you chose) you get some variety without having to pull the crank arms off.
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Old 2014-01-23, 10:13 PM   #11
GideupJimmy
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Duel it is... Thanx

Hi all ... Appreciate the guidance and for taking time to provide... Looks like Duel it is then... Jimmy
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Old 2014-01-23, 10:19 PM   #12
Nate128
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110/137 seems like it might be a better dual-hole solution if udc can be talked into an upgrade not listed in the drop-down. Lots of folks ride on the road with cranks as short as or shorter than 110. With it not being a mountain unicycle, I don't see the usefulness of a 150 mm option.
Yeah this is exactly what I've been pondering for awhile. After getting the 127/150, I sorta like the 127s for the speed and smoother pedaling and 150 for the better control and easier stops and then I'm wondering why not have a bit of both and get 137.

I also would think that the 110/137 would be the most ideal combination if UDC lets you choose. The 110 would be fantastic for speed on the road and the 137 would satisfy those that want the inbetween of the 127/150 spirits.

But the dual hole suggestion in general is a sound idea even though that's a $95 upgrade
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Old 2014-01-23, 10:30 PM   #13
Dane M
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then I'm wondering why not have a bit of both and get 137.
Because it doesn't work that way. You don't get the benefit of both. It's not like you gain control AND speed. You lose from both sides.

But without trying them you will never know what YOU prefer. People can tell you all day here what they like, but in the end, it's what feels right when riding yourself. You can always get 127/150, and if you find you want the shorter variant of dual, sell them here. They will sell quick and pretty close to full price if not damaged. Then you just buy the pair you prefer from udc with the free shipping code going on right now.
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Old 2014-01-23, 11:17 PM   #14
LargeEddie
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Because it doesn't work that way. You don't get the benefit of both. It's not like you gain control AND speed. You lose from both sides.
From my point of view, with just a bit more experience than the OP and doing similar riding, 137s give the benefit of "just right" without the disadvantages of "too long" or "too short." Down the road with more experience and braking skill, 110s would be excellent for long rides, with 137s as a fall-back for big hills or more control on bad days.

I've got 150s on two unicycles and they're fine on trails but I hate them both on the road. Too much monkey motion, and I've got fairly long legs. More wobble, less control...

But looking through old topics at rider preferences for 36ers (easier to find, more discussions about) you'll find an advocate for every length from 100 mm to 165 mm. So yeah, personal preferences...
Quote:
You can always get 127/150, and if you find you want the shorter variant of dual, sell them here. They will sell quick and pretty close to full price if not damaged. Then you just buy the pair you prefer from udc with the free shipping code going on right now.
Very good point. Good ISIS cranks always seem to move pretty quickly so it's not quite an irreversible commitment.
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Old 2014-01-23, 11:31 PM   #15
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150 seem painfully long on a 29er for me. Even when I was very new to riding I quickly moved to 125's for road. Some of the hills around here are pretty steep, and I don't think I could have controlled my uni with those cranks without a brake. So, if you are going to have a brake shorter cranks can be an option. I found that for regular all around riding, or XC MUni 140's were the most comfortable.

I guess I'm the odd man out on this one, but I do think the 140's offer better spinning, with very little loss of torque for climbing. For me they ended up being the perfect length on 36, and the perfect longer crank on 29. That said I have dual hole 120/140s that are just about perfect for everything.

So, I guess another vote for dual holes.
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