I think it was when lever standards were introduced I gave up trying to build bikes for others. WTH.

But, now I'm in that 'I have to learn this' stage again for my sons bike. I have some sort of inspection lever/shifter in slx form. But pretty certain the brake levers are not Ispec.

Have had a quick look on YouTube and Google/Bikeradar but I think everyone is as confused as everyone else. May they're all dyslexic too as their explanations don't seem to be helping much. Before I have a stroke ( strong feelings I know, but this sort of stuff makes my blood boil) can someone please take a look at my above picture and tell me which adaptor I needs to buy.

More pics below showing my standards (adding pics to the forum is easier than this ispec stuff).

Money is of the essence as work is scarce and I needs his bike running ASAP. So happy to just do some zip tie stuff if someone has figured out a way. Got loads of them.

Took a look at the Wolftooth adaptors but aside from making my head hurt, I just can't spend £25 + postage on a piece of adaptor just this moment.

Seems like maybe I needs this adaptor and then screw it into the back of the hole which takes the thread for the brake lever clamp!

https://bikeyoke.com/en/i-spec-ii-adapter/specii-l

First the thing I know;
I'm sure your brake lever is I-spec II.
Then I'm guessing;
Can't really tell but it seems you already have a I-spec II mount on your trigger..? Half a pipe, goes between clamp of brake and bar.

redefined_cycles wrote: ↑Thu Jun 05, 2025 9:37 pm Seems like maybe I needs this adaptor and then screw it into the back of the hole which takes the thread for the brake lever clamp!

https://bikeyoke.com/en/i-spec-ii-adapter/specii-l

Nope. See above: It's a half moon shaped piece that goes between lever and bar.

Oops... got caught in the same loop. My last concussion must have wiped out the I-spec EV story, which is the one you need. Sorry Shaf. My memory skipped a few years.

The EV adapter is put inbetween the lower two piece part of the brake clamp, you then get a thread inbetween the two bars of the clamp going around the downward facing part of your bars. In this thread goes the mount for your shifter.

So, it's an I-spec EV adapter you need for your SLX trigger.

Alpinum wrote: ↑Thu Jun 05, 2025 10:38 pm Oops... got caught in the same loop. My last concussion must have wiped out the I-spec EV story, which is the one you need. Sorry Shaf. My memory skipped a few years.

The EV adapter is put inbetween the lower two piece part of the brake clamp, you then get a thread inbetween the two bars of the clamp going around the downward facing part of your bars. In this thread goes the mount for your shifter.

So, it's an I-spec EV adapter you need for your SLX trigger.

Thanks Gian. After your first post I tried to put the half moon shape between/behind/married to the clamp bit on the brakes. I was just gonna take both parts out with me to the bars and starting fiddling about.

Then I saw your next post. Hopefully (there's a manufacturer with) the price (that) is lower than the Wolftooth stuff. I'll be using your Putoline method on the spare squealing brakes I have saved for these brand new levers.

Long term squealing research incorporated and that

See the grouchy thread for possible solution. Is the shifter 11 or 12 spd?

Convert it to band on clamp and avoid future compatibility woes...?

faustus wrote: ↑Fri Jun 06, 2025 11:03 am See the grouchy thread for possible solution. Is the shifter 11 or 12 spd?

Convert it to band on clamp and avoid future compatibility woes...?

Yes. Seen the adaptor at SJS of which I will most likely do. I think it must have been going cheap at the time and hence the purchase for another day/time. That time has obviously come.

If you decide to go down the route of converting to band-on, you'll also require one of these little covers (I think - double check and don't blame me )

https://www.sjscycles.co.uk/gear-spares ... y06m98070/

Along with the cover and clamp posted elsewhere

https://www.sjscycles.co.uk/gear-spares ... y06m98050/

It's the same scenario I just had with an XT shifter, swapping the covers took about 2 minutes

redefined_cycles wrote: ↑Thu Jun 05, 2025 11:24 pm

Alpinum wrote: ↑Thu Jun 05, 2025 10:38 pm Oops... got caught in the same loop. My last concussion must have wiped out the I-spec EV story, which is the one you need. Sorry Shaf. My memory skipped a few years.

The EV adapter is put inbetween the lower two piece part of the brake clamp, you then get a thread inbetween the two bars of the clamp going around the downward facing part of your bars. In this thread goes the mount for your shifter.

So, it's an I-spec EV adapter you need for your SLX trigger.

Thanks Gian. After your first post I tried to put the half moon shape between/behind/married to the clamp bit on the brakes. I was just gonna take both parts out with me to the bars and starting fiddling about.

Then I saw your next post. Hopefully (there's a manufacturer with) the price (that) is lower than the Wolftooth stuff. I'll be using your Putoline method on the spare squealing brakes I have saved for these brand new levers.

Long term squealing research incorporated and that

Hmmm... I have no clue why a different oil should prevent squealing... unless you pour it over the pads

It's more likely
- an alignement issue
- dirt in contact areas of adapter/frame/caliper, screw/washers/caliper, pads/cylinders etc
- glazed pads/rotor
- contaminated pads/rotor
- loud combination of a certain pad/rotor type.

Hmmm, dunno. But I learnt about that lovely pil from your years ago and it's done me well. So that's what will go in these

Sure, I still use it and am happy about the (for me) improved feel.
I just don't see how it could possibly affect how much noise the brake makes.

Alpinum wrote: ↑Mon Jun 09, 2025 7:28 pm Sure, I still use it and am happy about the (for me) improved feel.
I just don't see how it could possibly affect how much noise the brake makes.

Placebo