New 2014 CB1100, less than 500 miles. When I finished my workout at the Y today I noticed my cycle was pulling hard. With clutch pulled in, it would barely roll. I rode it home and put it up on center stand. That's when I found the rear tire would barely turn. What's happening with this? Can I ride it the 20 miles to the dealer in the morning without doing any harm? Anything i can do tonight to free up the brake?
Happened to me twice. First time; warranty. Second time I paid.
If you look at the edge you'll see that the black paint has burned off and turned white - light grey. When they pull the disc it will be warped like a cone (only very slight).
After watching myself carefully, with my Sidi adventure boots on my feet tend to dip down a lot, catch the rear brake lever and I would ride with the while applying brake pressure. Naturally this created a LOT of heat. This warps the disc and causes it to bind against the caliper housing.
I eventually ended up bending the brake pedal in a wee bit; and I try very hard to avoid the pedal. This did not happen with my Tour Master touring boots but they feel like slippers compared to the Sidi's. Part of the problem with the Sidi's, they are so robust that I could not feel riding the brake pedal.
Compared to my 650L and Griso, the CB1100 brake pedal sticks out further than I'm used to; too much in my humble opinion. Certainly too much for my inseam, HD boot combo and seating position.
The disc was almost $300, but it's pretty easy to replace. When Honda warrantied the first one my bike was only the second one they had seen do this. Riding the brake was one of the first things I thought of but I'm an experience rider and never caught myself doing that until much later.
The assembly which is held on by the axle bolt and holds the disc brakes is rubbing against the lower part of the rotor just below the pads. There is a bolt screwed into this assembly and perhaps it is too long and is rubbing against the rotor. It has worn a nice shiny ring all the way around the rotor below the disc pad. It's as if the outside pad is not touching the rotor. The resistance in turning the rear wheel is pretty much the same all way around. If I knew how to load a pic on this forum, I'd do that, but I am new to this site.
BTW, I've been riding cycles since 1980 and have never ridden the rear brake. I can't imagine with less than 500 miles on the odo that the rotor would be warped when I can see where the rubbing is occurring.
Yup, that is how mine warped and rubbed.
I started riding in 1976, felt the same way. I never rode the rear brake either.
I was wrong.
White Dog,
Read [url=http://cb1100forum.com/forum/showthread.php?tid=1913]this thread for information on posting pictures. PM me if you want more help.
(04-09-2015, 09:53 PM)Cormanus_imp Wrote: [ -> ]White Dog,
Read [url=http://cb1100forum.com/forum/showthread.php?tid=1913]this thread for information on posting pictures. PM me if you want more help.
Thanks for the info. Picture successfully uploaded.
Dealer has my cycle now and said it would be a warranty job. The Service Manager wanted his head mechanic to analyze the situation but he said a new rotor would have to be ordered. No mention of other parts. I was told the head mechanic had already looked at a new 1100 on the showroom floor as comparison. Had to leave the cycle but the shop was kind enough to get me a ride home at no cost to me.
In both my cases, just a disc was needed. Once the part comes in it's an easy fix. I had more trouble getting the rear wheel back on with the chain than anything else. Taking a tip from this forum, a piece of wood to prop up the rear tire worked wonders.
(04-10-2015, 04:18 AM)Rboe_imp Wrote: [ -> ]In both my cases, just a disc was needed. Once the part comes in it's an easy fix. I had more trouble getting the rear wheel back on with the chain than anything else. Taking a tip from this forum, a piece of wood to prop up the rear tire worked wonders.
Rboe, I'm not a motorcycle mechanic by any stretch but I cannot wrap my head around that "riding the brake pedal" would cause a groove in the rotor particularly where no disc pad rubs. To go even further, the brake pedal must be depressed to get the rear brakes to slow/stop the cycle. Not trying to be smart here, just stating an opinion. There has got to be a plausible reason the grooving occurs, particularly with less than 500 miles on the cycle.
I haven't heard from the dealer yet but one wrench(?) said the brake was "in spec" whatever that is supposed to mean. Hope he is not the one to repair it.
Just talked to the dealer and was told the rotor in question was "warped from the factory" and they are having one shipped in overnight. So, I may be riding late tomorrow afternoon. (woohoo?) I'm still wondering what caused the grooving, however.