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

Nagrom_ 04-17-12 10:09 PM


Originally Posted by ianjk (Post 14111923)
Scrod: Thinking of doing a century on my track bike this weekend for poos and giggles. I've done them geared and ~70 50+ mile rides fixed.. Am I a poseur if I drive my bike a couple miles in my car to a trailhead to avoid a 700' 10% grade hill on the last mile of the return leg? Should I just HTFU and grow some? Does it even count if I don't ride from my door?

Flip flop hub? 20t cog on one side. Climb it, stop at the top and flip it.

/notscrod

ianjk 04-17-12 10:44 PM

700' vert, not length... Think I might wus out and throw my 20t cog on the freewheel side for the last mile, as I can barely make it up on my winter geared cx fg bike running 38x17 after a couple hours of hard riding.

hj.paul7 04-18-12 01:31 AM

So I was dumb today and adjusting the length of my sram single speed chain. Popped some pins out, completely. But, I've managed to get them back in (stiff link though). If I can get the link to be non-stiff, is it safe to use? Or should I just buy a new chain.

Scrodzilla 04-18-12 06:16 AM


Originally Posted by Muffin Man (Post 14111776)
the fixing screw keeps loosening on my nds crank arm every day or two. thats not normal is it? its a truvativ elita? crank, gxp, and every time i notice the play in the cranks, i tighten it back to the torque recommended on the sram website.

Clean all the grease from the threads, put a drop of blue loctite on the bolt and reinstall.

Scrodzilla 04-18-12 06:18 AM


Originally Posted by hj.paul7 (Post 14112372)
So I was dumb today and adjusting the length of my sram single speed chain. Popped some pins out, completely. But, I've managed to get them back in (stiff link though). If I can get the link to be non-stiff, is it safe to use? Or should I just buy a new chain.

Most chain tools have a second 'shelf' for loosening stiff links. Another easy fix is to grab the chain with your thumbs on the stiff area of the chain and push as you pull back with your fingers - like you're trying to bend the chain.

Scrodzilla 04-18-12 06:21 AM


Originally Posted by Dannihilator (Post 14111935)
Just go for it from the front door.

+1

If my fat ass can do fixed centuries, you certainly can.

Scrodzilla 04-18-12 07:01 AM


Originally Posted by striknein (Post 14111805)
*snicker*

What...was I supposed to post the actual geo chart on the site???

:lol:

jpsawyer 04-18-12 08:35 AM


Originally Posted by hj.paul7 (Post 14112372)
So I was dumb today and adjusting the length of my sram single speed chain. Popped some pins out, completely. But, I've managed to get them back in (stiff link though). If I can get the link to be non-stiff, is it safe to use? Or should I just buy a new chain.

If you have some of the same chain left from when you cut it you can replace the stiff link with the leftover chain that you have. I have had to do that before

Erzulis Boat 04-18-12 10:45 AM

Ordered, but don't have it yet- 2010 KHS Flite 100 frameset.

Went to Retrogreesion site, and see the Dia-Compe BRS 100 come in 2 reaches. Getting the remaining bits I need for the build- Question, do you know what reach for the Flite frame?

Scrodzilla 04-18-12 10:46 AM

Please refer to the first post in this thread.

justfitme 04-18-12 08:08 PM

Scrod, is it the only spot for technical questions? Then sorry..have one.
When I take off my headphones I can hear a knocking sound coming from BB area on my Langster.. It is sporadic.. coming on ~30 kmh..
Should i change the BB (change the BB will fix it?) or just keep the headphones on?

Scrodzilla 04-18-12 08:11 PM

Are you certain it's your BB and not your chain or a pedal?

justfitme 04-18-12 08:20 PM


Originally Posted by Scrodzilla (Post 14116436)
Are you certain it's your BB and not your chain or a pedal?

Hmm... I will try to change the pedal tomorrow and re-try...
But what can be worng with the chain..It is brand new chain, brand new cog, brand new wheel and chain line looks perfect... Oh... Crankset is brand new too... I refer to BB right away because this is only unkown piece to me...

Santaria 04-18-12 08:24 PM

BB knocking? You sure your not getting pedal strike on the chainstay or something? Rear wheel being too tight could cause some funky chain popping as the links get torqued to hell and back when pedaling. You may not be aware of it at lower speeds, but as you build up more speed, you also torque the drive-train more - hence a louder noise.

/notscrod

justfitme 04-18-12 08:29 PM


Originally Posted by Santaria (Post 14116486)
BB knocking? You sure your not getting pedal strike on the chainstay or something? Rear wheel being too tight could cause some funky chain popping as the links get torqued to hell and back when pedaling. You may not be aware of it at lower speeds, but as you build up more speed, you also torque the drive-train more - hence a louder noise.

/notscrod

Not sure anymore..so you are saying that knocking can't come out from BB.. The starnge thing I never heard the sound like this from any multi speed bike but it is a second SS I hear it from (GTB and now this one).. I was thinking about BB in both cases... I do not know. ...have to admit

I would hold on this .. I'm thinking now it may be that old Delta cleat on old Look pedal I pulled from my wife's bike few days ago ...but she never complained..but it does not mean anything..

Santaria 04-18-12 08:41 PM


Originally Posted by justfitme (Post 14116509)
Not sure anymore..so you are saying that knocking can't come out from BB.. The starnge thing I never heard the sound like this from any multi speed bike but it is a second SS I hear it from (GTB and now this one).. I was thinking about BB in both cases... I do not know. ...have to admit

I would hold on this .. I'm thinking now it may be that old Delta cleat on old Look pedal I pulled from my wife's bike few days ago ...but she never complained..but it does not mean anything..

A creaking or tinging (I guess it could technically sound like a knocking) could come out of a bottom bracket shell, but I'm assuming you've properly installed your bracket and cups, everything is properly tensioned and greased. In some older frames where they used locktite, I've heard of a creaking, but not a knocking. Most modern **** out there has pretty good bearings, unless its crappier than a '52, even then if its greased and packed right, shouldn't be getting a pop or ting out of it - let alone a knocking sound.

/notscrod

justfitme 04-18-12 08:56 PM

It is 2011 Langster frame and previous owner was a bike mechanic (or at least the guy working in bike store), who built it 150 miles ago..according to him...But who knows what shelf he pulled the BB from....

... I do not know waht assumption I have to make out of this...

Muffin Man 04-18-12 09:18 PM


Originally Posted by Scrodzilla (Post 14112752)
Clean all the grease from the threads, put a drop of blue loctite on the bolt and reinstall.

Ok, I'll try this after I get some locktite.

JesusBananas 04-18-12 10:44 PM


Originally Posted by justfitme (Post 14116425)
Should i change the BB (change the BB will fix it?) or just keep the headphones on?

You should wear just the right earphone, so that you can still hear traffic. :)

himespau 04-19-12 07:43 AM


Originally Posted by justfitme (Post 14116425)
Should i change the BB (change the BB will fix it?) or just keep the headphones on?


Originally Posted by JesusBananas (Post 14116970)
You should wear just the right earphone, so that you can still hear traffic. :)

But change your cadence so the knocking matches the beat of whatever song you're listening to.

justfitme 04-19-12 08:16 AM


Originally Posted by JesusBananas (Post 14116970)
You should wear just the right earphone, so that you can still hear traffic. :)

I have volume control ... faster I ride - louder the music.

jpsawyer 04-19-12 09:22 AM

Like Sataria said, if your chain tension is tight you could get panging noises as your cadence increases due to the chain being torqued which would not be noticed under lower pressure.

ddeadserious 04-19-12 01:17 PM

Scrod,

I'm going to rewrap my MASH bullhorns with some tape that flexible enough to round the bend between the horns and the flats(the Deda Mistral, while super nice, is too stiff for it). I want something with some red in it, and was looking at the fizik microtex dual, and then some random stuff on Amazon. Any suggestions? Do you think my Kagero could pull off a full red wrap?

Scrodzilla 04-19-12 01:39 PM

In my experience, that Microtex dual is a mother****er to wrap around bends.

ddeadserious 04-19-12 01:43 PM

That's valuable experience. Any other suggestions?


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