Q&A: Why do bicycle chain checkers read TOO HIGH?
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- Опубликовано: 2 июл 2024
- Bicycle chain checkers (or indicators) are a handy tool, but they are criticized, in particular, for reading TOO HIGH. Why does this happen?
My other videos on chains & measurement:
- • Chains
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Contents:
0:00 - Intro
0:21 - Example
2:10 - Elongation vs slop
3:01 - Checker basics
4:17 - Confusion
Credits:
- www.bikeradar.com/advice/work...
#cycling #service #chain
Excellent video
These tools are just an indication not a high precision tool. Given they indicate a bit too early it is to give you a heads up so you at least will be able to change before it's too late. If you want to maximize and really squeeze the most km out of your drivetrain you will just have to at least get a 3 point chain checker, and also check several places over the entire length of the chain and just make up your own mind of what seems right.
Chains are rather inexpensive compared to cassettes and then + chainring, so I'd rather just swop it out once I reach the 0.5% just to have some peace of mind. I will also evaluate the condition of the cassette and chainring because there's no use of a new chain if the cassette/chainring is worn. That's just going to get extra expensive for no reason.
What a superb video
Welcome!
lots of times i evaluate chain wear by comparing new and worn chain and if chain is more than 3mm longer than new one, it is worn and last 5 years i do it by calipers and both methods are same ,just have to establish referent points
The Pedro chain checker tool pinches the rollers to try and take up the slop while measuring.
Same design as the Park Tool CC4. I see now that Unior are trying their own twist in this game with the chain wear indicator part number 629344. The difference is that the two engagement points on the right side is not both touching the inside roller, but opposite side of eachother. Then the indication part at the end is contacting the inner roller.
I just feel that this may be doing the same thing just that once the chain starts wearing it will be easier to hold tension on the middle engagement point given that is the most important one given it is the closest to the point you use to measure the slack.
Only 6 likes (including mine)?!
Thanks! Your question ignited a wave of interest towards the video 😉
@@ZavyalovCycling nice
Interesting video. What chain checker do you recommend?
My point is to grab any! Keeping in mind they are all imprecise by design. Even the ones pretending to be super precise. This tool aim is ease of use, not precision.
@@ZavyalovCycling agreed. I took my digital caliper to my 11 and 12 speed Shimano Dura Ace chains and was happy to find both just under 132mm (at 6 links). Bought a Park CC 3.2 just for convenience. Thanks for the detailed video
Simple chain replacement rules:
Ride your chain until it breaks.
When it breaks, and you install a new chain but then experience slipping of the new chain on your cogs-sprocket, then it's time also for a new set of cogs-sprocket.
Thats an awful rule. You will probably use twice as many cassettes/chainrings vs actually replacing your chain at the right time. Chains are £20, cassettes are double to triple that and front chainrings even more on a road bike.
of course and then spill lot of money for all worn parts
@@makantahi3731 No, you only spill money for parts that were already worn anyway. You can go through 4-5 chains at average of 3000km per chain before your sprockets need replaced. Trying to be overly precise on measuring chain wear saves you nothing.
@@Avianthro i work in bike repair shop and you are wrong,on time replaced chain saves lot of money and good chain maintenance saves money for chain- waxing can extend chain life for more than 6 times
@@makantahi3731 Doesn't match with my experience, and I have plenty. Chain waxing extending chain life 6X?? On what planet is that?