Rohloff wheel build

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murphy7
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Joined: 30 Apr 2015, 2:35pm

Rohloff wheel build

Postby murphy7 » 1 Aug 2016, 3:10pm

Hi All,

Anyone know of a good wheelbuilder in the Edonburgh area, who would be able to build up a rohloff hub wheel,

Regards Murphy

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georgew
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Re: Rohloff wheel build

Postby georgew » 1 Aug 2016, 5:35pm

murphy7 wrote:Hi All,

Anyone know of a good wheelbuilder in the Edonburgh area, who would be able to build up a rohloff hub wheel,

Regards Murphy



Big Al at Wheelcraft - in Clachan of Campsie, just north of Mingavie would probably be the man. Rohloff do have guidelines on building a wheel for their hub so better yo do a bit research.

http://www.cyclingabout.com/how-to-buil ... off-wheel/

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julk
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Location: Dalkeith

Re: Rohloff wheel build

Postby julk » 1 Aug 2016, 5:51pm

I would try Dave at http://www.davesbikeshed.co.uk/home which is in Aberdour, just across the bridge from Edinburgh.
He rides a Rohloff on one of his bikes.

He rebuilt my front wheel and it is excellent.

murphy7
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Joined: 30 Apr 2015, 2:35pm

Re: Rohloff wheel build

Postby murphy7 » 2 Aug 2016, 1:51pm

Hi ,

Have given Dave a ring and been quoted a very reasonable price, and will be having my wheel rebuilt later this week by him. Thank you for your replies.

Murphy7

murphy7
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Joined: 30 Apr 2015, 2:35pm

Re: Rohloff wheel build

Postby murphy7 » 18 Aug 2016, 7:56pm

Today i picked up my wheels from daves bikeshed and they are now fitted on my bike. Dave done an excellent job of building both front and rear wheels, rear is a rohloff . I would highly recommend him , he talks you through what he will do but also listens to what you have to say. He is obviously very knowledgeable of all aspects of bike building, and a cyclist with tales to tell

Murphy7

gerrymcm
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Re: Rohloff wheel build

Postby gerrymcm » 18 Aug 2016, 9:05pm

hi Murphy7,
Do you mind sharing the details of your build, spoke and rim choice etc?
Also did your builder mention the tension for the spokes?

I'm curious as I built my own Rohloff wheel and I'm jsut about to put it into service. I was maybe a bit foolish as I've only built one or two wheels before the rohloff wheel build but I thought I'd give it a go.
thanks
gerry

murphy7
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Joined: 30 Apr 2015, 2:35pm

Re: Rohloff wheel build

Postby murphy7 » 18 Aug 2016, 11:52pm

Hi Gerry,

Wheel build , rims are rigida andra 30 with siver sapim race spokes. The recommended tension is 1000nm _ 1200nm, so i can only assume he adhered to this, although this was not specified.
Good luck with your wheelbuild

Regards , murphy

MikeF
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Re: Rohloff wheel build

Postby MikeF » 19 Aug 2016, 9:36am

gerrymcm wrote:hi Murphy7,
Do you mind sharing the details of your build, spoke and rim choice etc?
Also did your builder mention the tension for the spokes?

I'm curious as I built my own Rohloff wheel and I'm jsut about to put it into service. I was maybe a bit foolish as I've only built one or two wheels before the rohloff wheel build but I thought I'd give it a go.
thanks
gerry
Your comment made me curious about what is special for Rohloff hubs. Looks like useful info here, but maybe you've already looked into it.
"It takes a genius to spot the obvious" - my old physics master

Brucey
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Re: Rohloff wheel build

Postby Brucey » 19 Aug 2016, 10:29am

murphy7 wrote: The recommended tension is 1000nm _ 1200nm


'nm' means 'nanometre'. One nanometre is a millionth of a millimetre.

'Nm' would be 'Newton-metre' which is a unit of torque.

'N' is Newton which is a unit of force.

1 kg exerts a force of ~9.81 N (in our gravity), so 1000 N to 1200 N would correspond to a load (in weight terms) of about 102 to 122 kg.

sorry to be pedantic, but it occurred to me that someone might think the spoke nipples were set with a torque wrench or something.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

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natmat
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Location: Sherborne, Dorset

Re: Rohloff wheel build

Postby natmat » 19 Aug 2016, 11:06am

Additionally you would need to have the pulling spokes correctly located on either inner/outer of the hub flange. Shimano specify which (inner/outer) they should be for their disc hub; I would assume Rohloff does the same.

gerrymcm
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Re: Rohloff wheel build

Postby gerrymcm » 19 Aug 2016, 11:39am

Good point about the spokes that I should check. I actually built my wheel quite a while back and then left it in the shed so have forgotten the details.
Thanks

murphy7
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Joined: 30 Apr 2015, 2:35pm

Re: Rohloff wheel build

Postby murphy7 » 19 Aug 2016, 9:41pm

:Hi Gerry,
It's good that other members hsve come on to give you some more advice. There is also a lot on you tube which is helpful. The Thorn forum also has a section for Rohloff which may be helpful.to you.

Regards Murphy

gerrymcm
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Joined: 30 Oct 2012, 2:52pm

Re: Rohloff wheel build

Postby gerrymcm » 24 Aug 2016, 10:56am

Hi Murphy
Apologies for late reply.
Yes it's helpful other folk contributed, it's what I hoped when I posted the question so others could benefit.
It's a nice helpful forum and a good resouce and I try to contribute as much as possible unfortunately my knowledge is still at the beginner stage.

I've joined the Thorn forum so thanks for that.

Good luck.
Gerry

Bez
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Re: Rohloff wheel build

Postby Bez » 24 Aug 2016, 11:16am

Either I've been lucky in getting my leading/trailing orientation right every time for the last 15 years or so, or it makes zero difference that I've found. The only aspect of building a Rohloff that I found different to any other build was that the resistance in the hub means that turning the wheel can twist your average consumer jig, which means that final truing requires a little more care than a normal hub.

I'm not sure where this statement in that article comes from: "Double butted spokes are great because they have a higher tensile strength per mm2 compared to basic spokes." Double butted spokes are beneficial, but it's not because they're magically made of stronger material (and strength is already a function of cross-sectional area anyway).

alexnharvey
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Re: Rohloff wheel build

Postby alexnharvey » 24 Aug 2016, 1:13pm

It's not magic, it's engineering.