front derailleur issues

aradoman

Hi guys,

trying to fit a front derailleur to my carrera zelos frame, but running into issues due to the position of the rear suspension mount on the downtube.

basically i have 3 derailluers in the spares box, low mount, normal and high mount. see pic;



if i use the high mount derailleur above the suspension mount, its too high to use the granny ring, as the chain is pulled up by the bottom of the cage. below the suspension mount and its too low etc. (rules this one out completely)

the low mount one cannot be mounted far enough down the downtube to stop the same happening (i.e. the cage remains too high and granny ring cannot be used)

i thought i was on to a winner with the 'normal' mount derailleur, mounting it below the suspension mount (meaning it was technically a few cm too low as its a 3 ring derailleur and wouldnt have cleared a 3rd ring) but as its mounted a few cm lower than it should be, it fouls the swing arm during travel of suspension



as you can see its already caught the frame at only 1/3rd travel

any suggestions what type of derailleur will fit/work? i know going 1x9 is an answer but id rather have 2x9

was thinking of maybe a direct mount 2x speed with a seattube adapter (high mount of course) as these seem to have quite a high mount?

there must be a derailleur that fits anyway, it sure as hell came with one when they were new!. the frame is basically a carrera banshee circa 09/10 (guess)

(ps i got the frame NOS so came with no parts)

cooldad

You could try a BB mounted one.

lpretro1

That one is a 'bottom swing' one ie the cage swings below the mount clamp - would a 'top swing' type fit in there?

cooldad

Top swing is low mount - he said he already tried one.

Check out some Google images - plenty of other people seem to manage.



Looks like a standard top swing to me.

cooldad

This looks just like yours

http://www.halfords.com/cycling/bikes/m ... large-19#/#tab2

And has one of these

http://www.bicyclestore.com.au/shimano- ... lleur.html

aradoman

Thanks for the replies, yeah tried looking at Google but could determine any exact models of derailleur. ...

Tried halfords website, but the shape of the suspension mount has changed, if you look closely it is now more of an upside down v as opposed to mine which goes more across then down...

I suppose different derailleurs of top/bottom swing will have slightly different dimensions, just don't want to end up with a bucket full of them before I get the right one!

aradoman

Maybe this will fit, clamp seems to be level with cage, unlike the 3 I have currently
http://www.chainreactioncycles.com/mobi ... -prod69484

aradoman

cooldad wrote:

You could try a BB mounted one.

Do I need a certain type of BB for this?

cooldad

Yep a BB mounted one - something like this

http://www.ebay.co.uk/itm/SHIMANO-STX-M ... 4897.l4275