Author Topic: Mercury Mk III - New Bars  (Read 2282 times)

SteveM

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Mercury Mk III - New Bars
« on: July 02, 2023, 09:03:10 am »
Hi everyone,

Swapping out the standard Thorn bars on my Mercury.  I have the KOGA Satori Denham Bars and I am looking for some advice.  The new bars are wider and swept back, quite markedly so.  My questions are:

Will I need new brake and Rohloff cables?

Would it be best to fit the Ergon GPC1 Rohloff specific grip?

I was hoping to make a straight swap but Iím thinking now that I may need to use longer cables.  What do you think?  I have bought a new riser stem to fit the wider bar already.  Just need to crack on with the job.

Andre Jute

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Re: Mercury Mk III - New Bars
« Reply #1 on: July 02, 2023, 12:57:33 pm »
Hi everyone,

Swapping out the standard Thorn bars on my Mercury.  I have the KOGA Satori Denham Bars and I am looking for some advice.  The new bars are wider and swept back, quite markedly so.  My questions are:

Will I need new brake and Rohloff cables?

Would it be best to fit the Ergon GPC1 Rohloff specific grip?

I was hoping to make a straight swap but Iím thinking now that I may need to use longer cables.  What do you think?  I have bought a new riser stem to fit the wider bar already.  Just need to crack on with the job.

I raised the North Road Bars on my bike considerably when I fitted the n'lock security system and the electric assist. I raise the handlebars far enough to be able to turn the the grips down towards the road surfaces so that my forearms and wrists are in the position of maximum immunity from stress, that is, straight. (A writer is a manual labourer -- he operates a keyboard -- subject to all the prices of bad kinetics that come to factory workers in the process of their specialisation.) The Rohloff cables are oddly angled but haven't broken in a further six or seven thousand kilometres. I have spares but no intention of fitting them unnecessarily.

If you're doing this (among other reasons, of course) to sit more upright, you will also have to adjust the reach to the grips by moving the saddle forward, not forgetting that the new position may also require the saddle to be adjusted a fraction vertically.

That's a pretty pricey handlebar, especially considering that it's buck naked bare, with options that are themselves eyebrow-raising.

I were you, I'd be inclined to get the new control position down pat and settled before I worry about whether the Rohloff cables are comfortable. If they don't break, you have time for another ride and some stepwise fractional adjustments until you no longer notice that you have changed your handlebars, at which point you can change the cables if necessary. Take an 8mm socket and something to turn it with, or an open or ring spanner, 8mm size, with you in case you need to change the gears manually just in case a cable breaks. The nut you need to turn to change gears is revealed when you take the EXT box off the Rohloff on the non-drive side of your bike.

Good luck.

SteveM

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Re: Mercury Mk III - New Bars
« Reply #2 on: July 02, 2023, 01:06:24 pm »
Thanks Andre, like you say - why not try a straight swap and see how it goes.  That is exactly what I will do this afternoon.  I got the Denham bars cheap on FB marketplace - so no drama if I donít like them.  I do like the look of them though, seem well thought out to me.

DIAGMONKEY

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Re: Mercury Mk III - New Bars
« Reply #3 on: July 02, 2023, 09:46:01 pm »
I have a set of the Denham bars. I did not need to extend the cables on my bike although they are not fitted to the a Mercury. I did fit them to the club tour mk4 with a Rohloff fitted. Near enough a straight swap. Plenty of hand positions.  I really like them!

SteveM

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Re: Mercury Mk III - New Bars
« Reply #4 on: July 03, 2023, 12:36:36 am »
That is good to know and reassuring.  Never replaced the cables on a Rohloff and itís not something I relish.

Moronic

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Re: Mercury Mk III - New Bars
« Reply #5 on: July 03, 2023, 03:02:17 pm »
Interesting looking handlebar, @SteveM. For my present needs the stock Thorn option that I have on my Mercury is great, but I'm glad to know about these.

The designer has posted some great cycling content over the years. Seems to have done a fair bit of riding, too.  ;D

Bongs For Steve: a lyrical novel about smoking and friendship. https://www.amazon.com.au/Bongs-Steve-I-J-Baker-ebook/dp/B0B2BRTKM2

SteveM

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Re: Mercury Mk III - New Bars
« Reply #6 on: July 04, 2023, 02:43:34 pm »
Well the Denham bars went on without a hitch.  Short ride to test them and I have to say they just transform the ride.  Much more upright with the Ritchie adjustable stem, far better control, more hand options and more real estate.  Might not suit everyone - particularly if you prefer a more aggressive riding position.  I like to look over hedges!  Just need some tape for the bull horns and Iím done.  For slow touring I just canít imagine anything better.  Well done Alee Denham and Koga for really thinking through the optimal bar design.  It works.
« Last Edit: July 04, 2023, 02:47:15 pm by SteveM »

kwkirby01

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Re: Mercury Mk III - New Bars
« Reply #7 on: July 06, 2023, 12:12:14 pm »
Any pictures SteveM? I've also wondered what a Thorn bike would look like with Denham bars.
Kevin K. Glasgow

DIAGMONKEY

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Re: Mercury Mk III - New Bars
« Reply #8 on: July 10, 2023, 08:39:57 pm »

kwkirby01

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Re: Mercury Mk III - New Bars
« Reply #9 on: July 11, 2023, 07:22:17 am »
Thanks Diagmonkey
Kevin K. Glasgow

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Re: Mercury Mk III - New Bars
« Reply #10 on: August 24, 2023, 10:06:38 pm »
SteveM

How are you getting on with the Denham bar?