Question for biopace buffs
#1
Thread Starter
Full Member

Joined: Oct 2004
Posts: 318
Likes: 4
From: on a leafy block
Bikes: Soma Double Cross, ‘79 Centurian Mixte, generic mountain bikes (Nasbar frames)
Question for biopace buffs
I'm running a Shimano R100 crank and a 42t biopace chainring (130 bcd) on my fixie. The set up suits me fine except for one thing: the crank arm won't accept other 130 bcd chainrings. When I tried putting on a Sugino, for example, it wouldn't quite fit.
Is there a reason for this?
Is there a reason for this?
#3
Thread Starter
Full Member

Joined: Oct 2004
Posts: 318
Likes: 4
From: on a leafy block
Bikes: Soma Double Cross, ‘79 Centurian Mixte, generic mountain bikes (Nasbar frames)
My bad on mentioning Sugino (I have many Sugino rings, alas). The round ring I tried slapping on was indeed a 130. But perhaps it's worth another try. Thanks.
#5
Death fork? Naaaah!!

Joined: Nov 2005
Posts: 5,529
Likes: 942
From: The other Maine, north of RT 2
Bikes: Seriously downsizing.
I've worked with many, many Shimano cranksets that came stock with Biopace rings; all took the standard 110/130 BCD round rings with no problems.
Top
(always looking for 40t/130 and 50t/110 Biopace rings)
Top
(always looking for 40t/130 and 50t/110 Biopace rings)
__________________
You know it's going to be a good day when the stem and seatpost come right out.
(looking for a picture and not seeing it? Thank the Photobucket fiasco.PM me and I'll link it up.)
You know it's going to be a good day when the stem and seatpost come right out.
(looking for a picture and not seeing it? Thank the Photobucket fiasco.PM me and I'll link it up.)






