Jem
Viscount
?
Posts: 3,391 
|
Post by Jem on Jul 2, 2014 18:01:21 GMT
What would be the smallest number of teeth on smallest front ring that I could reasonably use if my biggest front ring is 52 teeth?
(using a Titlist fd and Crane rear - if that makes any difference to it?)
Thanks in advance
|
|
|
|
Post by stoatie on Jul 2, 2014 18:20:38 GMT
According to Velobase a 14 tooth difference would be the most a Titlist could handle so a 38T. You would also need to factor in the BCD of your cranks most older doubles will be 144mm meaning that you couldn't go lower than a 42. 130mm BCD allows you to go down to 38. |
|
Jem
Viscount
?
Posts: 3,391
|
Post by Jem on Jul 2, 2014 18:32:57 GMT
Ah right, thanks Stoatie. So if I search Velobase for my other FD's and see if they will give anything less?
It's my 'Pro porthole chain-set with a 52 and 42, but I was hoping to get a bit lower on the smallest.
|
|
|
|
Post by velocipete on Jul 2, 2014 18:35:01 GMT
On my Maxy chain set,fitted to my Pro,I ditched the 52 outer,replaced it with the 42 inner,and fitted a 36
as an inner.Lowest possible with that chainset.As you're such a powerful young pedaller,I reckon you could
get away with using 52,36.It will work if you have a medium cage rear mech,or,you only use the inner on the
3 lower gears.
Give it a go and report back.
Cheers,
Pete.
|
|
|
|
Post by stoatie on Jul 2, 2014 18:47:58 GMT
They use the same rings as the Specialites T.A Cyclotouriste cranks I believe, so in the theory the worlds your oyster with regards to ring size derailleur permitting. The deerhead FD that I've got on mine goes from a 28 upto 50 but it has got a 38 inbetween them. You could always convert the porthole cranks to a triple if necessary. |
|
Jem
Viscount
?
Posts: 3,391
|
Post by Jem on Jul 2, 2014 19:10:11 GMT
I will indeed report back - thanks for ideas
|
|
|
|
Post by velocipete on Jul 2, 2014 19:32:09 GMT
I had an outer for a TA chainset,50 teeth I think,at DFR2,perhaps you didn't see it Jem.I've got one or two old
Strnonglight/TA chainrings kicking about.More 86 BCD,now they're useful,especially for tandemists.
Cheers,
Pete.
|
|
