Stronglight Speedlight cranks on a Record BB?

I did the same thing with Speedlights and a Chorus 102mm BB a few years
ago. As long as you can get the square-taper Speedlights, it will
work.

Antti Salonen said:

I've been looking into Stronglight Speedlight double crankset, as I'd
like to move from 170 mm cranks to 165 mm. It says on the Stronglight
website that these cranks should be used with a ISO taper bottom bracket
with a 103 mm axle.

Does this mean that I could use my current model Campagnolo Record BB
with these cranks? It has a 102 mm axle, so it's very close. As I
understand it, current Record (and Chorus) double bottom brackets have a
symmetrical axle, unlike the triple BB.

-as

Antti Salonen said:

I've been looking into Stronglight Speedlight double crankset, as I'd
like to move from 170 mm cranks to 165 mm. It says on the Stronglight
website that these cranks should be used with a ISO taper bottom
bracket with a 103 mm axle.

Does this mean that I could use my current model Campagnolo Record BB
with these cranks? It has a 102 mm axle, so it's very close. As I
understand it, current Record (and Chorus) double bottom brackets
have a symmetrical axle, unlike the triple BB.

You need to check whether Stronglight's spindle starting cross section is
the same as Campag's (I don't think it is).

From www.branfordbike.com//bottombr/bb2.html#item2 :

"Shimano and almost every major bottom bracket maker have traditionally
used the same spindle end cross section of 12.9 mm and two degree taper.
Campagnolo uses the same two degree taper but has a smaller starting cross
section of 12.7 mm.

"A Shimano crank arm will bottom out on Campagnolo spindle. A Campagnolo
crank arm will not draw far enough onto a Shimano spindle."

~PB

Pete Biggs said:

You need to check whether Stronglight's spindle starting cross section is
the same as Campag's (I don't think it is).

It is actually. The Stronglight square taper BB is ISO (like
Campagnolo) for 103 an 111 mm lengths. For 107, 110 and 113 mm it is
JIS (like Shimano).

http://www.stronglight.com/stronglight/page.php?nom=produit&keyProd=boitierRoute2

It looks like there should be no problem, as I measured my Record BB and
the axle is symmetrical.

-as