Rubber dampers for the 2017 CB1100 EX's front rotors

[VLJ_imp]

Is anyone here aware of any Honda or aftermarket rubber dampers for the brake rotors of the 2017 CB1100 EX? Honda only offered the CB1100 EX for the 2017 model year here in the U.S., but they still offer it in many other markets. I'm wondering whether Honda bit the bullet and added some sort of resonance dampers for the subsequent model years, as Triumph did with the addition of rubber dampers to the 2017 T120, in response to the 2016's brake-squealing issues.



By all accounts, the addition of those ugly black dampers solved the problem. I don't like how they look, but I'll accept a set of eyesores behind my rotors if it means no more squeals and no more cracking noises. If no one around the world currently offers them for the CB, I would be willing to let a shop fabricate a set for me.

Yay? Nay?

[pdedse]

This thread looks interesting...so brake squeal was a problem in '16 for the T120 and a year later Triumph responds and designs rubber dampers for their '17 models? That's a very good response from Triumph, even if it looks a bit funny.

Since we don't have any '18 or '19 cb1100s in the U.S., I'm wondering if the front brake squeal has appeared on any cb1100 in non-U.S. markets. If the problem is only for '17 models, then a question to ask would be is the brake system for the '17 the same as it is for '18 and later models? If not, then looking at the differences in the braking system between '17 and later models could be very telling.

[VLJ_imp]

pdedse, yes, the 2016 T120 was plagued with two main issues: LOUD brake squealing (much worse than our CB), and condensation forming inside the instrument clusters. Triumph immediately addressed and solved the brake-squealing issue for the 2017 model with the addition of the rubber dampers shown above, but I am not aware that they ever made any changes to the instrument bezels.

Otherwise, yes, what you're describing is exactly what I am hoping for here; namely, that someone from some other country that still receives the CB1100 EX or CB1100 RS might steer me in the right direction, fix-wise. I know that Cormanus is in Australia, jtopiso is in Spain, alprider is in Italy, countless people here are from Canada, etc. There is a wealth of knowledge here, plus there's that CB1100 aftermarket company in Japan that everyone here recommends.

Just casting lines, hoping something will bite.

[GoldOxide_imp]

This thread looks interesting...so brake squeal was a problem in '16 for the T120 and a year later Triumph responds and designs rubber dampers for their '17 models? That's a very good response from Triumph, even if it looks a bit funny.

Since we don't have any '18 or '19 cb1100s in the U.S., I'm wondering if the front brake squeal has appeared on any cb1100 in non-U.S. markets. If the problem is only for '17 models, then a question to ask would be is the brake system for the '17 the same as it is for '18 and later models? If not, then looking at the differences in the braking system between '17 and later models could be very telling.

(+1) pdedse ... interesting indeed.

[pdedse]

pdedse, yes, the 2016 T120 was plagued with two main issues: LOUD brake squealing (much worse than our CB), and condensation forming inside the instrument clusters. Triumph immediately addressed and solved the brake-squealing issue for the 2017 model with the addition of the rubber dampers shown above, but I am not aware that they ever made any changes to the instrument bezels.

Otherwise, yes, what you're describing is exactly what I am hoping for here; namely, that someone from some other country that still receives the CB1100 EX or CB1100 RS might steer me in the right direction, fix-wise. I know that Cormanus is in Australia, jtopiso is in Spain, alprider is in Italy, countless people here are from Canada, etc. There is a wealth of knowledge here, plus there's that CB1100 aftermarket company in Japan that everyone here recommends.

Just casting lines, hoping something will bite.

Did you get a look at the thickness of the rubber damper that Triumph uses? I looked on [url=https://www.bikebandit.com/oem-parts/2018-triumph-bonneville-t120-range/o/m164155#sch965484]Bikebandit parts and couldn't find the rubber damper part under brakes for '17 and '18.

If anyone is going to fabricate anything for the CB1100, maybe a look at the T120 damper would be a good start.

The following is from one of the T120 forums. Related, but different...not really a fix, but maybe something that will work to take the edge off:

"My T120 front brakes squeals horribly when approaching a stop sign. This only happens at low speeds.

In the first six month of ownership I removed the front pads three times. Each time, they were cleaned and a light coating of anti-squeal paste was applied to the back of the shoes. The third time I removed them, I chamfered the edges. The brakes still squealed.

I got to thinking it was something I was doing and it turns out it was my braking technique. My two previous bikes were BMW’s with rear-brake assist. When you apply the front brake, the bike proportionately applies the rear brake. I developed a bad habit of only using the front brakes, unless it was an emergency condition.

Once I realized this, I changed my braking technique and used the rear brake in conjunction with the front brake. I’m happy to report the problem has disappeared. I can still consistently get the front brakes to squeal if I only use the front brakes; they never squeal if I use both." I added bold type for emphasis.

I'm going to consciously try that tomorrow on my CB to see if it makes any difference.

[Bazbro_imp]

This is the front wheel exploded diagram for a 2018 CB (no 2019 is listed yet - edit, see below) from UK Honda parts supplier Fowlers (I think they all use the same, Honda-supplied parts fiche).
I cannot see anything that could be a "damper". The ring outboard of the disc is the 'pulser ring'.



I've just located a listing for 2019 parts and it is identical to this 2018 illustration.

[max]

VLJ do your wheels have spokes or are they cast alloy?

[jtopiso_imp]

pdedse, yes, the 2016 T120 was plagued with two main issues: LOUD brake squealing (much worse than our CB), and condensation forming inside the instrument clusters. Triumph immediately addressed and solved the brake-squealing issue for the 2017 model with the addition of the rubber dampers shown above, but I am not aware that they ever made any changes to the instrument bezels.

Otherwise, yes, what you're describing is exactly what I am hoping for here; namely, that someone from some other country that still receives the CB1100 EX or CB1100 RS might steer me in the right direction, fix-wise. I know that Cormanus is in Australia, jtopiso is in Spain, alprider is in Italy, countless people here are from Canada, etc. There is a wealth of knowledge here, plus there's that CB1100 aftermarket company in Japan that everyone here recommends.

Just casting lines, hoping something will bite.

I have the 17'RS, and I don't think it has any rubber damping. I don't recall seeing any rubber part in that area. It also doesn't have the squeal problem (it only has 10.000km in the clock).

However: RS brakes are floating rotors and fixed calipers, while the EX and previous models I think they are fixed rotors and floating calipers.

[Cormanus]

There hasn't been a CB1100 imported into Australia since 2011, so I'm afraid I can't help VLJ, pdedse and those of you with the 2017 EX. I can suggest only that you examine the parts fiches for the 2017, 2018 and 2019 years to see if there's any differences. Maybe [url=https://www.bike-parts-honda.com/honda-motorcycle/1100-MOTO/CB]start here.

[Bazbro_imp]

There hasn't been a CB1100 imported into Australia since 2011, so I'm afraid I can't help VLJ, pdedse and those of you with the 2017 EX. I can suggest only that you examine the parts fiches for the 2017, 2018 and 2019 years to see if there's any differences. Maybe [url=https://www.bike-parts-honda.com/honda-motorcycle/1100-MOTO/CB]start here.

That's the parts plan I've reproduced above. Initially it's a 2018 model, but then I found one for 2019 (yours, coincidentally!) and they're identical. There is no indication of any flexible insert whatsoever.