Bottom Bracket Gears?

General cycling advice ( NOT technical ! )
Mike_Ayling
Posts: 156
Joined: 25 Sep 2017, 3:02am
Location: Melbourne Australia

Re: Bottom Bracket Gears?

Postby Mike_Ayling » 29 May 2018, 12:41am

The Pinion has two further advantages over the Rohloff and indeed all other IGHs: first, its central position means better weight distribution than the "rear-heavy" IGH; and second, rear wheel removal is easier without having to disturb the shift cable(s).


If you have the Rohloff EX box you simply unscrew a thumb screw and remove the EX box from the hub. Takes no time at all.

Mike

Manc33
Posts: 1362
Joined: 25 Apr 2015, 9:37pm

Re: Bottom Bracket Gears?

Postby Manc33 » 30 May 2018, 10:52pm

Sounds like you are either going to either have a big fat bottom bracket, or not many gears, if you had both then magic is occurring somewhere (or an internal geared BB that's going to wear out fast). If I was going this route I'd get a Rohloff Speedhub. We can dream. :)
Only weird bikes are interesting anymore.

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Cunobelin
Posts: 9301
Joined: 6 Feb 2007, 7:22pm

Re: Bottom Bracket Gears?

Postby Cunobelin » 31 May 2018, 9:09am

MY Gekko has a 20" rear wheel with Rohloff and spinning out was an issue

A Sclumpf HSD combined with the Rohloff gives a massive gear range that allows for speeding along the flats, and climbing steep hills

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[XAP]Bob
Posts: 16882
Joined: 26 Sep 2008, 4:12pm

Re: Bottom Bracket Gears?

Postby [XAP]Bob » 31 May 2018, 9:28am

Manc33 wrote:Sounds like you are either going to either have a big fat bottom bracket, or not many gears, if you had both then magic is occurring somewhere (or an internal geared BB that's going to wear out fast). If I was going this route I'd get a Rohloff Speedhub. We can dream. :)


The pinion is a specialist 'big fat' bottom bracket.
The schlumpf isn't, but only has two gears (albeit very widely spaced in the HSD)
A shortcut has to be a challenge, otherwise it would just be the way. No situation is so dire that panic cannot make it worse.
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