I drive 3.0 crank bearing replacement (not pivot bearing for suspension)

[Dean111]

I have a little play on the crank pedals, the suspension is butter smooth with no suspension creeking.

Is replacing the crank bearings the same as any other mtb ? Or is it a major job ? what bearings do i need ?

(i hear a clicking sound when pedalling as well as a little play on the crank arms) 

Edited September 21, 2022 by Dean111

[BaGearA]

Normal 2rs bearings , or wheel bearings

 

essentially bearings that are spaced 

 

pivot or Max bearings will work but are more expensive and will very quickly start making an annoying sound like a wheelbarrow 

[Dean111]

Thank you sir.

So i need to order two 2RS bearings.

Is it a tough job to get the bearings out of an i-drive 3 or is it the same as most every mtb ?

I have heard it is quite a job to service the suspension mechanism on the idrive, but its not clear if i one would need to take out the whole mechanism (which requires a suite of tools)  to get to the crank bearings ?

Or is pulling the crank bearings on this bike an easier job ?

Edited September 18, 2022 by Dean111

[BaGearA]

15 minutes ago, Dean111 said:

Thank you sir.

So i need to order two 2RS bearings.

Is it a tough job to get the bearings out of an i-drive 3 or is it the same as most every mtb ?

I have heard it is quite a job to service the suspension mechanism on the idrive, but its not clear if i one would need to take out the whole mechanism (which requires a suite of tools)  to get to the crank bearings ?

Or is pulling the crank bearings on this bike an easier job ?

Depends on A ton of things 

 

Crank and BB standard would get yhe list of possible standards much narrower 

[dasilvarsa]

Post Picture

[Dean111]

On 9/18/2022 at 11:46 AM, BaGearA said:

Depends on A ton of things 

 

Crank and BB standard would get yhe list of possible standards much narrower 

Does this help ?

[Steady Spin]

Based on those cranks I suspect you have an ISIS Drive Bottom Bracket. 

Might not be too common these days but a good bikeshop will be able to replace it. It is a sealed unit so you don't replace the bearings.

[TheoG]

All that rust ... my swak hart 🙈

[Dean111]

1 hour ago, TheoG said:

All that rust ... my swak hart 🙈

Agree I would never over my own living soul leave a bike to rust like that. It was a second hand purchase, the idrive mechanism is solid with no creaking so once the bottom bracket is replaced should be as good as new.

Edited September 21, 2022 by Dean111

[Dean111]

2 hours ago, Steady Spin said:

Based on those cranks I suspect you have an ISIS Drive Bottom Bracket. 

Might not be too common these days but a good bikeshop will be able to replace it. It is a sealed unit so you don't replace the bearings.

Ok i found out that it is shimano BB ES-70 cartridge. Are they hard to find and what would it cost ?

 

[PhilipV]

5 minutes ago, Dean111 said:

Ok i found out that it is shimano BB ES-70 cartridge. Are they hard to find and what would it cost ?

 

Best you phone a bike shop or two in your area. 

[Dean111]

Ok i guess so thanks

[100Tours]

Octalink BB. I have found a hubber who seems to have a few of them around - I'll let you know if he has a spare.

To replace them you will need:

1. a crank extractor to get the crank arms off the BB.  IceToolz Crank Extractor, Octalink/ISIS, #04D2 | IceToolz.eu
2. a BB tool to unscrew the BB from the shell https://www.icetoolz.eu/en/icetoolz-bb-tool-32mm-shimano-isis-drive-11b3/a5570

If you don't have the tools then rather let your lbs do it for you.

Edited September 21, 2022 by 100Tours

[Dean111]

11 hours ago, 100Tours said:

Octalink BB. I have found a hubber who seems to have a few of them around - I'll let you know if he has a spare.

To replace them you will need:

1. a crank extractor to get the crank arms off the BB.  IceToolz Crank Extractor, Octalink/ISIS, #04D2 | IceToolz.eu
2. a BB tool to unscrew the BB from the shell https://www.icetoolz.eu/en/icetoolz-bb-tool-32mm-shimano-isis-drive-11b3/a5570

If you don't have the tools then rather let your lbs do it for you.

Please thank you sir !

Edited September 22, 2022 by Dean111

[David Marshall]

From the one picture it looks like the BB could be square tapered.  In any event whatever is in there needs to come out before you buy or fit a new one because the axle length needs to be measured.  If the chainrings are shot you may as well buy a new crank and square tapered BB because it will be cheaper than a BB/chainring purchase.  I would rather go square taper than ISIS/Octolink simply due to price and availability.

[Dean111]

Thank you sir, yes the bike is very old i paid 3200 for it and had to repair the wheel hubs, change the shifters and derailleur really busted my budget, will the squared bb be the ES70 cartridge ?

Here is all the specs on the bike:

https://www.bicyclebluebook.com/value-guide/product/38662/

Edited September 22, 2022 by Dean111