Stronglight 99 Crank question

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02-20-22 | 08:00 PM

#26

mountaindave

Thread Starter

tantum vehi

Joined: Jul 2008

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From: Flathead Valley, MT

Bikes: More than I care to admit

Quote:

Originally Posted by jonwvara

I have said it before, but I love this forum.

+1 It never fails to impress!

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02-21-22 | 10:44 AM

#27

oneclick

Senior Member

Joined: Feb 2020

Posts: 4,035

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Quote:

Originally Posted by bboy314

Also the Stronglight Crank when we pushed off to go for a ride one day… crankarm had already been gouged from a bent pedal cage ridden by previous owner. This was the day it decided to give up.

Time for the stoker to finally do some work....

02-21-22 | 05:34 PM

#28

mountaindave

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tantum vehi

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From: Flathead Valley, MT

Bikes: More than I care to admit

Quote:

Originally Posted by JohnDThompson

A helicoil insert would fix that, better than new.

I don't think my LBS has those...

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02-21-22 | 06:14 PM

#29

bulgie

Senior Member

Joined: Apr 2009

Posts: 3,785

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From: Seattle

Quote:

Originally Posted by The Golden Boy

And, my goodness, does a 99BIS crankset look stunning.

Here's two 99bis rings on a 93 crank:

Jon Vara's 93 triplizer rings are top quality and affordable, but if anyone's crazy enough to want to make one like mine, I can explain the steps. Actually I'm pretty sure I've written it up before on BF, so apologies for the repeat.

A triplized 93 is not better than a 99 in any way that matters. I think it's actually a less-elegant solution because of all the extra bolts needed. This is just for crazy people who really want lower gears on a "racing" bike that just has to have a 93 for some sentimental reason.

Mark B

02-21-22 | 07:03 PM

#30

JohnDThompson

Old fart

Joined: Nov 2004

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From: Appleton WI

Bikes: Several, mostly not name brands.

Quote:

Originally Posted by mountaindave

I don't think my LBS has those [helicoil inserts]...

If you want to create right-hand pedal threads, a machine shop would probably be able to do it for you.

02-21-22 | 07:36 PM

#31

mountaindave

Thread Starter

tantum vehi

Joined: Jul 2008

Posts: 4,624

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From: Flathead Valley, MT

Bikes: More than I care to admit

Quote:

Originally Posted by bulgie

A triplized 93 is not better than a 99 in any way that matters. I think it's actually a less-elegant solution because of all the extra bolts needed. This is just for crazy people who really want lower gears on a "racing" bike that just has to have a 93 for some sentimental reason.

Mark B

Or it must stay original. That’s why I got one of Jon’s 93 triplizers for my dad’s bike (solid workmanship BTW). Sentimental value, but still useable for hills.

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02-23-22 | 06:48 AM

#32

pa1

Newbie

Joined: Feb 2021

Posts: 8

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Hello guys. While you are at it, how would you compare Stronglight 80 with the 99?

02-24-22 | 06:47 AM

#33

eom

Eccentric Old Man

Joined: Jan 2014

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From: BelleVegas, IL

Bikes: 1986 Trek 520 Cirrus, 1979 Schwinn Traveler III, Trek T100, 1995 Trek 970, Fuji America

Quote:

Originally Posted by verktyg

Is it wrong... or just French!
verktyg

Made me think of Greg Trooper "I'm So French"

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02-24-22 | 01:35 PM

#34

squirtdad

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Joined: Jul 2006

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From: San Jose (Willow Glen) Ca

Bikes: Kirk Custom JK Special, 86 De Rosa Pro, '84 Team Miyata,(dura ace old school) 80?? SR Semi-Pro 600 Arabesque

I think since mountaindave has this nice stoker crank he should build vintage tandem starting with this base.....

could be a C&V find the frame/parts collaboration....

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02-24-22 | 03:18 PM

#35

ThermionicScott

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From: CID

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)

Quote:

Originally Posted by mountaindave

Holy bucket of merde, Batman - that is it!! I was wondering why it had an L. I mean, I knew that the French were weird about their bike stuff (like thumbing their noses at threading standards), but they don’t just randomly stamp stuff in their gear.

I checked the threads with a right pedal - it went in half way by hand before it got stiff. Then I checked a left pedal and it did the same thing! The threads are crossed, I can see it looking close up. But the left arm is a legit left arm.

And of course the lack of an inner shelf is because this was for the single ring of a timing chain only. Why waste material with that extra shelf?

However, this all makes me a little nervous - I don’t know if I’d want to use that as a single speed crank now that I know that it has be re-tapped for a right pedal.

BF members for the win!
Nice job, Encyclopedia Brown!

This is your chance to build that left-side-drive fixie you've always wanted!

02-24-22 | 03:26 PM

#36

pa1

Newbie

Joined: Feb 2021

Posts: 8

Likes: 1

Quote:

Originally Posted by pa1

Hello guys. While you are at it, how would you compare Stronglight 80 with the 99?

The reason I ask is that I'm tempted to get one of those. I see them on sale here and there, even NOS. Though in such case it's usually only the drive side.

Can anyone confirm my suspicion that 80 has wider tread then 99?
Many thanks in advance.