Rotors warped. Buy oem size or upgrade?

Hello all!

Bought a 1993 VFR750 on monday 11/4. Something I knew straight away was the front rotors are warped badly. I talked the guy down some $$ so it isn't a big deal. What I wanted to know was whether you seasoned vfr owners have had better luck (easy of install, part locating) to find new 296mm rotors and brake pads or to swap caliper and/or larger rotors from another Honda model. I'm new to the VFR but have plenty of tech skill to get this done. I appreciate any insight!

 

I been using these with an F3 front hoop that I had to barter labour on. No regrets and the after rebuilding front calipers along wtih rebuilt massa cylinder, its a new bike.

They are full floating units too, you may be able to get a gen 4 rotor set-up but the jury is oot on it. Btw-my rotors are EBC in case you couldnt see em...Love Gen 3 bikes!

I use HH pad with zero wear on my rotors, I have some black organics from the same company waiting in a drawer of my tool box...Cheers.

 

oh and Congrads on your new purchase!!! - We require pictures as we are visual arse-holes...

 

Welcome Mr. QRSpecV. You might want to look at EBC rotors & pads.

 

I figured ebc was a good choice. I only spent $1400 on the bike it didn't seem to make sense to spend $400 just on brakes.


If you don't stand for something, you'll fall for anything.

 

:welcome: to the nuts house :wave:
EBC will be fine......Go for it

 

Cross reference the parts #s and find a bike salvage yard near Santa Rosa...

Warped rotors is one of the big scams that are pulled in the auto trade.

We will now hear from dudes that work at places that pull shit like that and say it never happens, because I am a stark raving mad, alcoholic dope fiend, homo who doesn't even

have a motorcycle.

 

Im with BB on this....(the stark raving mad part)..

I don't do maintenance and I had been going to a Honda Stealership for oil changes, breaks, ect...I took my bike into a mom and pop place to save some money and to do an oil change and have the breaks looked at... Next thing I know they are telling me that my rotors are warped and they have to be changed immediately and that I have an oil leak (its a Honda not a f*%king Harley) and they wanted to "work" on my bike. I was told it wasn't safe to ride it until the work was done...Needless to say I don't go there anymore. At least at the Honda dealer I am expecting to get raped but they buy me lunch first. (Im not cheap just inexpensive) Nothing was wrong with the bike except oil and pads. Oh and the douchebag place said they could get me after market at a discount 800$ rotors....

 

I don't think the rotors are warped per se. Mine are extremely high mileage and are fine. I suggest the wheel was dropped and the rotors bent. But none the less, appears they need replacing. If you can get over 100K miles from factory rotors, I would stay with those. When and if I ever need new rotors, they will be OEM

MOFWIW

 

How do you know they are warped? Did you measure run-out or are they just pulsing under braking? If they are within spec you can try cleaning up the rotor with scotchbrite pad to remove any brake material. If the pulsing goes away after that they are not warped but you have excess pad material transfer. I would not have believed this until I bought a 2011 Concourse. They are notorious for warped rotors. It turns out for many folks its excess material transfer. Google it there is plenty of info on warped rotors.

http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths

Having said that, I replace the front rotors on a 98 VFR by buying a used OEM pair off ebay. They were cheap so I was willing to take a risk on them. I think it was $50 for a pair.

Good Luck

 

They pulse at any speed right until the moment I come to a complete stop. More of a wallop. It's VERY pronounced. Something I defintely can't live with. I have some other issues that need attending to on a small budget. I found some new chinese rotors off ebay for $140. Can't be worse than what I have!

 

Loose or excessively worn steering head bearings can increase brake pulsing too. Hard to know without the mileage. Agreed, more likely bent from a fall.

Best to replace the rotor bolts whenever they're removed.

 

Nice Pictures! I like the left side Two Bros pipe. Do your rotors have ridges in them? Do they have a lip on the top of the dish? Like a "high-hat?" The symptoms you described are similar to the countless turds that I have ridden around on and worked on.

You could use a straight edge and use a feeler gauge to figure oot run-oot and such, I make the analogy of buying used rotors as buying used underware. I understand your on a budget and all, but some things are just more important, like your arse...in the end, its the tyres and brakes that save your bum. If the outer lips on your rotors are like Mick Jaggers, they are toasted and should be binned. Nuff Sedd, Cheers. Too bad they hacked off the duck bill fender on your new :wink:

 

They do have a lip. I am replacing the head bearings due to a severe groove in the center. I bought the Chinese rotors. It's not worth finding good used rotors. Metal is metal and good Braking pads should cure the problem. I wanted to ask if the left side two bros was uncommon? I know very little about these bikes. Any info would be helpful! Like valve adjusts and spark plugs, how often?


"If you don't stand for something, you'll fall for anything."

 

There is a download for a factory manual on your bike. It's free.

 

That bunch should be outed by name and location..Did they try the "if you don't get this fixed your family will die of the Black Plague?" Works as a great closer. HD sales dudes have that one down pat..

BTW I am only that way when the moon is full..

 

Stay away from here...

Global Motorsports


16920 Kuykendahl Rd

Houston, TX 77068

Yes they also do Hardlys for any doods who want to bring their pig in....

 

I have purchased and used the Chinese rotors on my 4G for two seasons. They are great, and so much better than guessing on a set of used rotors.

In my case, the right rotor got dinged on the carrier at one point or another, and pulsed during any braking maneuver. I couldn't stand it anymore, and have reason to suspect that the uneven braking effect played a role when I laid it down a few summers ago.