No Suck Fear

Sidewinder Jerry

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Mar 14, 2011
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Rockwood, TN
Well I'm fixing all the little issues with the Sidewinder. One was to replace the now exploded Shimano Tourney M300 rear derailleur with a Sram X4. I noticed the Sram X4 has a lot more drawback tension in the pulley cage. I'm sure that's going to help with the other issue I had.

A couple of days before the Tourney failure I went grocery shopping. There was about a 100 lbs in the pull behind trailer. As I was getting close to a hill I shifted into the small front chainring. Everything was fine on level ground. However as I began to climb the hill well the dreaded chain suck happened. Now I'm sure much of this was due to the weak drawback tension on the cage of the crappy Tourney. Hopefully the Sram X4 solves a lot of that.

Still I'm not leaving things to chance, I installed a anti-suck plate. I purchased a manufactured one but to install it would've ment getting rid of the one side folding double kickstand. Well that certainly wasn't going to happen. Therefore, I spent the day modifying the ASD and the kickstand. Got tired and calling it a day. Will fasten the ASD totally together tomorrow.

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A good strong spring helps a lot. Also adjusting the in/out adjustments on the derailleur to be centered on the inner outer most sprockets. Decent trigger shifters that are spaced correctly can mean a lot too vs an elcheapo shifter.
 
A good strong spring helps a lot. Also adjusting the in/out adjustments on the derailleur to be centered on the inner outer most sprockets. Decent trigger shifters that are spaced correctly can mean a lot too vs an elcheapo shifter.
I'm very good at adjusting derailleurs. However, even with strong derailleurs chain suck can still happen when pulling heavy loads up steep hills. Mountian bikers quickly discovered this which is why anti suck devices were invented.

Though it's possible to occur in any chainring, chain suck most commonly happens in the small chainring.
 
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