Double vs triple & gearing...

[Clive George]

"MartinM" <[email protected]> wrote in message
news:[email protected]...

> I started with the usual 52/42 vs 13-24, but when I started Audax
> dropped to a 39, but this was still a struggle so cheated with a 28
> inserted instead of the 24, which made a good emergency gear but you
> could not basically change up from it to 21 without it feeling like
> someone had tied a haybale on the back, so this year went back to a
> 13-23 but with a 30/40/50 triple from SJS, this is ideal as you get a
> good range of low gears and also fairly close ratio in each front
> ring. With only 7 on the back the ratios on a normal 14-28 on the back
> are just too far apart road use. Would never buy a bike without a
> triple now.

How about 46/36/24 with 12-18 or 19 - same range, but some overlap swapped
for close ratio everything. (lighter too if you're counting grammes!)

cheers,
clive

 

[MartinM]

"Clive George" <[email protected]> wrote in message news:<[email protected]>...
> "MartinM" <[email protected]> wrote in message
> news:[email protected]...
>
> > I started with the usual 52/42 vs 13-24, but when I started Audax
> > dropped to a 39, but this was still a struggle so cheated with a 28
> > inserted instead of the 24, which made a good emergency gear but you
> > could not basically change up from it to 21 without it feeling like
> > someone had tied a haybale on the back, so this year went back to a
> > 13-23 but with a 30/40/50 triple from SJS, this is ideal as you get a
> > good range of low gears and also fairly close ratio in each front
> > ring. With only 7 on the back the ratios on a normal 14-28 on the back
> > are just too far apart road use. Would never buy a bike without a
> > triple now.
>
> How about 46/36/24 with 12-18 or 19 - same range, but some overlap swapped
> for close ratio everything. (lighter too if you're counting grammes!)

Yes would work but not on my frame with braze on front mech, which
struggled with a 48. Much better with a 50.