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Posted

I went to the LBS with this complaint: 'my chain jumps the coggs, sometimes in the front other times in the back'. Clever techie replied, chain suck sir, we'll need to replace either the casette or chain rings...lots of money later...problem solved

 

 

Hopes this helps

Posted (edited)

What is chain suck?

 

 

your chain sticks to the front chain ring and jams everything up, if you are not quick enough say on a climb and you crank you will break the chain.

 

last year did the Lourensford and had a new chain on, I had one or two rides to bed in etc

 

when the race started everything was fine until the first mud puddle my chain started sticking to the chainring, I managed to catch it everytime until on one sharp climb my new chain broke

 

I repaired it and managed to get some lube and continued the race very cautiously

 

Took my bike to the LBS on the monday and the fault was put down to a worn granny ring

 

Bottomline be careful with new chains, casettes and in particularl the granny ring

 

Chainsuck leads to massive debate about what the best lubes are

 

the lesson learnt for me is always to race with a small tube of lube some lubes are better for wet and some for dry ...

Edited by wapad
Posted

“Chainsuck” is when your chain does not detach correctly from the bottom of your chainring, and instead wraps around the ring until something jams.

Chainsuck happens when the force provided by the rear derailleur spring is less than the force causing the chain to stick to your chainring.

Posted

“Chainsuck” is when your chain does not detach correctly from the bottom of your chainring, and instead wraps around the ring until something jams.

Chainsuck happens when the force provided by the rear derailleur spring is less than the force causing the chain to stick to your chainring.

This is exactly how I understood chainsuck.

With a dual suspension the chain can get stuck between the front chainring and the frame. then you need to get off the bike and compress the rear shock till the chain falls out. Very irretating and happens in wet conditions.

Posted (edited)

Hi,

 

A couple of helpful tips:

1. check your chain rings for burrs and file down, this will help a bit

2. Buy large head zip ties and tie onto your chainstay behind the chainrings, the idea is that the chain hits the zip tie head and falls down.(as taught by the great Gary Fisher himself)

 

Little things make life easy

 

Rgds

Edited by MTB@cgcycling
Posted

“Chainsuck” is when your chain does not detach correctly from the bottom of your chainring, and instead wraps around the ring until something jams.

Chainsuck happens when the force provided by the rear derailleur spring is less than the force causing the chain to stick to your chainring.

 

Impressive response. Thanks.

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