Ultegra DI2 disc pad replacement

[kingrollo]

Any tips on how to perform this task - and what pads to buy - its ultegra di2 about 2 years old

usually get shop to do it - but he has closed down and everywhere else really busy - any help appreciated

 

[13 rider]

I just replaced my ultegra hydraulic pads I presume yours will be the same Shimano code is lo3a the one you have are probably lo2a which the above replaces . These are the finned resin pads .
Just be careful with the pad restraining bolt mine was seized and made of cheese otherwise simple job YouTube is full of videos . You can use a different brand like Clarke's which are massively cheaper £5 at set

 

[T.M.H.N.E.T]

Use the old pads to help push the pistons back, basically with a screwdriver.

New pads will have more material and possibly won't allow the disc in without the pistons retracted

 

[kingrollo]

I just replaced my ultegra hydraulic pads I presume yours will be the same Shimano code is lo3 the one you have are probably lo2a which the above replaces . These are the finned resin pads .
Just be careful with the pad restraining bolt mine was seized and made of cheese otherwise simple job YouTube is full of videos . You can use a different brand like Clarke's which are massively cheaper £5 at set

cheers
I was thinking of buying a spare retaining bolt - in the case the worse did happen - would this be the correct one ?

https://www.ebay.co.uk/p/1801203450...MIhqn4ptik6gIVWODtCh0DzQUbEAQYAiABEgI3K_D_BwE


and these pads ?
https://www.wiggle.co.uk/shimano-road-disc-brake-pads-alloy-backed-3

 

[13 rider]

Correct bolt
Pads will fit but are sintered (metal) lo4a they will wear the rotor quicker . The one I used are resin lo3a
Off my two bolts 1 came out easy the other was completely seized you will soon know when you go to undo be careful applying force as I rounded off the head without much effort

 

[Cycleops]

This video of Dura ace disc replacement must be similar. Us a plastic tool, tyre lever or similar rather than a screwdriver to push the pistons back.

View: https://youtu.be/yXUE8qqTmI4

 

[kingrollo]

Correct bolt
Pads will fit but are sintered (metal) lo4a they will wear the rotor quicker . The one I used are resin lo3a
Off my two bolts 1 came out easy the other was completely seized you will soon know when you go to undo be careful applying force as I rounded off the head without much effort

ok - so these would be better ?
https://www.tredz.co.uk/.Shimano-L0...ac615131596e3&utm_source=aw&utm_medium=648417

or

Amazon product ASIN B07NJ7Y88SView: https://www.amazon.co.uk/SHIMANO-L03A-Unisex-Adult-Brake/dp/B07NJ7Y88S

 

[13 rider]

They are the ones I used . Wether they are better than the sintered is a personal choice . I would check your old pads if they have lo2a on them then lo3a is the direct replacement and would swap like with like

 

[kingrollo]

All done - well the front brake. Only took around 15 minutes - easier than v brakes to be honest. Thanks all for your help.