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-   -   Ask Scrod (https://www.bikeforums.net/singlespeed-fixed-gear/769181-ask-scrod.html)

Rootzilla 07-30-12 04:09 PM

What's the point of "upgrading" to a 50-100$ crankset?

Crandrew 07-30-12 04:36 PM

Thanks Scrod! I'll take a look at the stock crank and see whats the deal there.

I want to upgrade the cheap purple crank to get rid of the crazy color.

What you gonna do when you get the bike for 180.

Rootzilla 07-30-12 04:43 PM


Originally Posted by Crandrew (Post 14546595)
I want to upgrade the cheap purple crank to get rid of the crazy color.

Fair enough. In the picture of Draft Lite that I saw only the chainring was purple, the crankset itself was black.

Crandrew 07-30-12 06:06 PM

Very good eye Rootzilla ;) Want to teach me how to find the correct Chainring and hardware to replace just the ring? I assume there are 4 different standard sizes or something.

Scrodzilla 07-30-12 06:17 PM

Without knowing whether your BB spindle is square-taper or round with splines, it's going to be difficult to hypothetically pick out a sprocket for you.

BigglyPuff 07-30-12 07:11 PM

Rootzilla = Scrodzilla's eager little cousin?

Scrodzilla 07-30-12 07:26 PM

:lol:

In that case, he should change his name to Scrodzuki.

For those who don't know, Godzuki was a character created by Hannah-Barbera in the 70s that was supposed to be Godzilla's chubby little nephew who could only produce a puff of smoke when trying to breathe fire.

True story: I used to nerd out over Godzilla when I was a kid.

tomatsu 07-30-12 07:40 PM

On a SS freewheel bike, what would cause such a difference betweeen the tightest part of the chain and the loosest part of the chain? I've tried different chainrings and freewheels so I'm guessing it's either the loose ball bearings, or the cones, or the hub itself?

When the wheel is coasting there's also a bit of "pulsing" in the chain -- going loose, going tight.

Thanks!

Scrodzilla 07-30-12 07:43 PM

Unless you're using a premium-quality chainring/freewheel, chances are that they are not perfectly round - which is very common. ACS freewheels are notorious for being oval.

You may also want to try centering your chainring.

BigglyPuff 07-30-12 08:00 PM


Originally Posted by Scrodzilla (Post 14547296)
:lol:

In that case, he should change his name to Scrodzuki.

For those who don't know, Godzuki was a character created by Hannah-Barbera in the 70s that was supposed to be Godzilla's chubby little nephew who could only produce a puff of smoke when trying to breathe fire.

True story: I used to nerd out over Godzilla when I was a kid.

I believe it. Now don't go giving these crazy ideas to people. I think I just saw another name ending in -zilla.

tomatsu 07-30-12 08:39 PM


Originally Posted by Scrodzilla (Post 14547373)
Unless you're using a premium-quality chainring/freewheel, chances are that they are not perfectly round - which is very common. ACS freewheels are notorious for being oval.

You may also want to try centering your chainring.

Thanks! I'll try that.

hamfoh 07-30-12 08:57 PM

scrod I'm having issues with my compression plug on my carbon fork.

ill tighten it down, make sure its not too tight and it'll feel good and I'll head out. the first big pot hole I hit I will hear a 'ping' and then the cap comes loose enough that I can turn it by hand. I tried adding another 2.5mm spacer on top to see if that would do it, but it's still happening. any ideas?

LessonLearned 07-30-12 08:57 PM

Scrod,

Got my LBS to install an FSA Orbit-X headset for me and when I got the bike back the steering was very stiff, wheel would not turn freely.
I adjusted it and loosened it a bit but it seems like maybe it's supposed to be stiff because of the new grease? I think I read that someplace?

Reason I ask is because in order for me to adjust it to the point where it can turn freely, it has to be right on the cusp of having slack. like 1/8th or 1/16th of a turn and it's got slack.

In short - are new headsets stiff/tight for a bit?

solipsist716 07-30-12 09:53 PM

Notscrod, but in my experience, new headsets are sometimes stiff or resistant to turning, but this should fade quickly. If it doesn't, somebody down the line most likely had a classic case of the doin' it wrong's.

IthaDan 07-30-12 10:09 PM


Originally Posted by hamfoh (Post 14547697)
scrod I'm having issues with my compression plug on my carbon fork.

ill tighten it down, make sure its not too tight and it'll feel good and I'll head out. the first big pot hole I hit I will hear a 'ping' and then the cap comes loose enough that I can turn it by hand. I tried adding another 2.5mm spacer on top to see if that would do it, but it's still happening. any ideas?

Once the stems tight you can relax the top cap. Might stop it popping up and out.

hamfoh 07-30-12 10:21 PM

tried it in variations from hand tight to pretty tight with an allen key. as soon as I hit some rough roads... DING and then I can just twirl the top spacers around with my fingers.

Rootzilla 07-31-12 02:07 AM


Originally Posted by Crandrew (Post 14546936)
Very good eye Rootzilla ;) Want to teach me how to find the correct Chainring and hardware to replace just the ring? I assume there are 4 different standard sizes or something.

You'll need to find out what is the BCD (bolt circle diameter) on your cranks. 144mm is the track standard (the photo I've seen does not look like this but it is very difficult to tell from a photo anyway), 135mm is the Campagnolo standard also quite unlikely and 130mm is the road standard which to me woud seem most likely.

For more info, consult http://sheldonbrown.com/cribsheet-bcd.html


Originally Posted by Scrodzilla (Post 14546974)
Without knowing whether your BB spindle is square-taper or round with splines, it's going to be difficult to hypothetically pick out a sprocket for you.

This I find quite confusing?

And no, as far as I know, me and Scrod are not related. My nick comes from admiration of Bootsy Collins and roots music.

Scrodzilla 07-31-12 07:18 AM

Rootzilla is wrong here (which is why this is my thread and not his). The Draft Lite has a one piece sprocket which mounts directly to both the crank arm and spindle (not a chainring) and doesn't have a bcd:

https://www.lfgss.com/attachments/23...ite-2009-b.jpg


Originally Posted by Rootzilla (Post 14548344)
This I find quite confusing?

I guess it's time to stop answering questions in my thread.

Rootzilla 07-31-12 07:34 AM

I guess it is. This was the picture of 2012 SE Draft Lite I was going by:

2012_SE_Draft Lite_Black_Sideb.jpg

(Note the purple chainring as mentioned by CRandrew)

Scrodzilla 07-31-12 07:41 AM

If he's got a 2012 Draft Lite, I stand corrected. You still need to stop answering questions in my thread.

Scrodzilla 07-31-12 07:42 AM


Originally Posted by hamfoh (Post 14547697)
scrod I'm having issues with my compression plug on my carbon fork.

ill tighten it down, make sure its not too tight and it'll feel good and I'll head out. the first big pot hole I hit I will hear a 'ping' and then the cap comes loose enough that I can turn it by hand. I tried adding another 2.5mm spacer on top to see if that would do it, but it's still happening. any ideas?

Your compression plug is most likely stripped.

/hamfist

Rootzilla 07-31-12 07:51 AM


Originally Posted by Scrodzilla (Post 14548860)
If he's got a 2012 Draft Lite, I stand corrected. You still need to stop answering questions in my thread.

Will do. I only answered since he said he had a 2012 and looking at that picture your answer didn't make sense to me. + he asked me wheter I want to teach him how to find the right replacement for the purple eyesore. No intention to step on your toes.

LessonLearned 07-31-12 07:57 AM


Originally Posted by solipsist716 (Post 14547886)
Notscrod, but in my experience, new headsets are sometimes stiff or resistant to turning, but this should fade quickly.

Scrod, do you agree with this response regarding my question about a newly installed FSA Orbit-X headset feeling "tight"?

Scrodzilla 07-31-12 08:13 AM

Yes. Sealed cartridge bearings are often stiff or sticky when they are new.

Crandrew 07-31-12 08:15 AM

2012 draft lite
 

Originally Posted by Scrodzilla (Post 14548860)
If he's got a 2012 Draft Lite, I stand corrected. You still need to stop answering questions in my thread.

Yes indeed its the 2012. I will go take a look at the chainring size and the BB spindle style.



Originally Posted by Rootzilla (Post 14548906)
Will do. I only answered since he said he had a 2012 and looking at that picture your answer didn't make sense to me. + he asked me wheter I want to teach him how to find the right replacement for the purple eyesore. No intention to step on your toes.

Thanks for your help. If I could actually PM I would pm you. :) Appreciate the help folks.


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