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#1
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Octalink ES25 replacement?
The BB on my MTB makes a ticking sound when warmed up, sounds similar to
a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? -- Regards, Joerg http://www.analogconsultants.com/ |
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#2
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Octalink ES25 replacement?
On 2017-08-11 11:00, Joerg wrote:
The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Add-on: Is the ES300 they recommend as replacement better? -- Regards, Joerg http://www.analogconsultants.com/ |
#3
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Octalink ES25 replacement?
On Friday, August 11, 2017 at 11:00:27 AM UTC-7, Joerg wrote:
The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? http://www.ebay.com/itm/Shimano-BB-5....c100506.m3226 Cost three times what the ES25 does and I've never had one fail. |
#5
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Octalink ES25 replacement?
On 8/11/2017 1:00 PM, Joerg wrote:
The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Ensure the arms are not loose on the spindle first. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#6
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Octalink ES25 replacement?
On 2017-08-11 12:39, AMuzi wrote:
On 8/11/2017 1:00 PM, Joerg wrote: The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Ensure the arms are not loose on the spindle first. They are on tight. The play is also a bit sideways. If I keep riding will it just become gradually worse or can it fail catastrophically in the middle of nowhere? On my last Shimano 600 BB I rode until it had about 0.1" play in the largest chain ring and shifting trim became iffy (old friction shifter bike). But that was an ajustable BB where I could milk out a second life by mounting the cranks 180 degrees rotated. What I don't like on these newfangled BBs is the left side plastic cup. For the road bike I got a UN-55, only aluminum on the left but at least not plastic. -- Regards, Joerg http://www.analogconsultants.com/ |
#7
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Octalink ES25 replacement?
On 8/11/2017 3:04 PM, Joerg wrote:
On 2017-08-11 12:39, AMuzi wrote: On 8/11/2017 1:00 PM, Joerg wrote: The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Ensure the arms are not loose on the spindle first. They are on tight. The play is also a bit sideways. If I keep riding will it just become gradually worse or can it fail catastrophically in the middle of nowhere? On my last Shimano 600 BB I rode until it had about 0.1" play in the largest chain ring and shifting trim became iffy (old friction shifter bike). But that was an ajustable BB where I could milk out a second life by mounting the cranks 180 degrees rotated. What I don't like on these newfangled BBs is the left side plastic cup. For the road bike I got a UN-55, only aluminum on the left but at least not plastic. Since it's shot and since you dislike low quality bearings and nylon cups, Tom Kunich is right; get a better quality version of it. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#8
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Octalink ES25 replacement?
On 2017-08-11 14:00, AMuzi wrote:
On 8/11/2017 3:04 PM, Joerg wrote: On 2017-08-11 12:39, AMuzi wrote: On 8/11/2017 1:00 PM, Joerg wrote: The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Ensure the arms are not loose on the spindle first. They are on tight. The play is also a bit sideways. If I keep riding will it just become gradually worse or can it fail catastrophically in the middle of nowhere? On my last Shimano 600 BB I rode until it had about 0.1" play in the largest chain ring and shifting trim became iffy (old friction shifter bike). But that was an ajustable BB where I could milk out a second life by mounting the cranks 180 degrees rotated. What I don't like on these newfangled BBs is the left side plastic cup. For the road bike I got a UN-55, only aluminum on the left but at least not plastic. Since it's shot and since you dislike low quality bearings and nylon cups, Tom Kunich is right; get a better quality version of it. The BB-5500 Tom suggested doesn't come in the same spindle length. Which better one could replace the ES25 and is compatible? The ES300 looks like it also has a plastic cap on the left. -- Regards, Joerg http://www.analogconsultants.com/ |
#9
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Octalink ES25 replacement?
On 8/11/2017 4:26 PM, Joerg wrote:
On 2017-08-11 14:00, AMuzi wrote: On 8/11/2017 3:04 PM, Joerg wrote: On 2017-08-11 12:39, AMuzi wrote: On 8/11/2017 1:00 PM, Joerg wrote: The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Ensure the arms are not loose on the spindle first. They are on tight. The play is also a bit sideways. If I keep riding will it just become gradually worse or can it fail catastrophically in the middle of nowhere? On my last Shimano 600 BB I rode until it had about 0.1" play in the largest chain ring and shifting trim became iffy (old friction shifter bike). But that was an ajustable BB where I could milk out a second life by mounting the cranks 180 degrees rotated. What I don't like on these newfangled BBs is the left side plastic cup. For the road bike I got a UN-55, only aluminum on the left but at least not plastic. Since it's shot and since you dislike low quality bearings and nylon cups, Tom Kunich is right; get a better quality version of it. The BB-5500 Tom suggested doesn't come in the same spindle length. Which better one could replace the ES25 and is compatible? The ES300 looks like it also has a plastic cap on the left. What length? The 5500 goes to 118mm besides the regular 110mm and 113mm. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#10
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Octalink ES25 replacement?
On 2017-08-11 15:55, AMuzi wrote:
On 8/11/2017 4:26 PM, Joerg wrote: On 2017-08-11 14:00, AMuzi wrote: On 8/11/2017 3:04 PM, Joerg wrote: On 2017-08-11 12:39, AMuzi wrote: On 8/11/2017 1:00 PM, Joerg wrote: The BB on my MTB makes a ticking sound when warmed up, sounds similar to a hot car engine after it is turned off. It has also develoved an ever so slight play, just a few mils. It is an Shimano ES25 Octalink. How long do you guys let that go before replacing? Can anyone recommend a better quality BB for this that lasts longer than 5k miles and doesn't cost an arm and a leg? Ensure the arms are not loose on the spindle first. They are on tight. The play is also a bit sideways. If I keep riding will it just become gradually worse or can it fail catastrophically in the middle of nowhere? On my last Shimano 600 BB I rode until it had about 0.1" play in the largest chain ring and shifting trim became iffy (old friction shifter bike). But that was an ajustable BB where I could milk out a second life by mounting the cranks 180 degrees rotated. What I don't like on these newfangled BBs is the left side plastic cup. For the road bike I got a UN-55, only aluminum on the left but at least not plastic. Since it's shot and since you dislike low quality bearings and nylon cups, Tom Kunich is right; get a better quality version of it. The BB-5500 Tom suggested doesn't come in the same spindle length. Which better one could replace the ES25 and is compatible? The ES300 looks like it also has a plastic cap on the left. What length? The 5500 goes to 118mm besides the regular 110mm and 113mm. The ES25 comes in 113mm and 121mm. I haven't taken it apart yet, wanted to do that when I know what to buy and then order immediately after disassembly, to minimize downtime. The BB-5500 I could only find in 109.5mm and 118mm. There were also warnings that the spindle only accommodates older 9-speed group set cranks: https://www.excelsports.com/main.asp...or=1&minor= 6 Quote "The pipe-billet spindle has eight 9mm deep splines and only fits older Shimano cranks - many of the 9 speed 105 (not all), Ultegra and Dura-Ace variety". I have a Deore M522 crank set on the MTB. -- Regards, Joerg http://www.analogconsultants.com/ |
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