Running a single cable with dual cable routing

[mamadirt]

Apologies for the daft question but my recently acquired S&M Sabbath has dual cable guides under the toptube (a la London mod) but I've never been a fan of gyros so would prefer to run just a single cable (sacrilage maybe  but it's gonna be a rider and I don't see myself bar-spinnin anytime soon).  Now I know i could use just one of the guides but isn't that gonna make things run a little off centre? 

[Rombloke]

cable ties

Dave

[mamadirt]

Yeah but I have a dual cable stop (sorry, wasn't quite clear up there) so running a single cable to just the one side will run things a little off centre.

[bof]

if possible drill a hole in the middle . A hole just big enough to fit the inner cable through 

[James Nada]

You could run a caliper brake (assuming you are able to drill a hole in a suitable position to mount it) (and assuming you don't mind loosing some stopping power).

[mamadirt]

I guess so but I already have a nice new silver AD990 and my reasoning behind wanting to run a straight cable is down to prevous experience with mushy gyro brakes.  Drilling a hole would be more of a crime on an NOS frame than leaving off the gyro I reckon  - not a lot of room for error either.  Just found this on the search which may possibly work but I may just have to put aside my gyro prejudice run it as nature intended.  Watch this space . . . 

[bof]

you could run 2 cables from one of these I think
http://www.allterraincycles.co.uk/product/111100.html

[mamadirt]

I had wondered if one of those would work, or whether I'd need to use the Odyssey gyro modulever cables with it (in which case I guess they'd be too short).  Worth a look though anyway.  Cheers!

[TwoBobRob]

Make the straddle as long as is possible and it may work with a single cable.  The long straddle will lessen the offset a bit.  How may cable guides do you have, just a pair side by side, or two pairs?

[mamadirt]

Just one pair, side by side, about halfway along the underside of the toptube.  Like you say, a long straddle cable and spring adjustment may help - thanks.

[TwoBobRob]

Yeah, set your AD up very wide too and hopefully the straddle won't rub on the seat tube at all - jobs a goodun!   

[mamadirt]

Thanks Rob - looks like it's all good . . .



Doesn't seem to pull off centre at all and has plenty of clearance around the seat tube.

Few more pics here . . . very work in progress at the mo (quick build with parts nicked from my son's bike) but feels pretty good so far.

[TwoBobRob]

Sweet.

The other thing you can do is treat yourself to a posh straddle hanger.  They're always a bit wider than the cheapo one that comes with the brake. That would help with clearing the seattube too   

[mamadirt]

Good idea - thanks