slotted or solid

think i am going to change solid rotors for slotted what do you think

 

Nice lookin' and supposed to cut down on heat. Read a do-it yourself on another forum. Apologize, don't know enough to vote either way...

skillet

 

waste of time and money. Bike is not high performance enough and I doubt seeing the conditions (i.e. track time, lots of hot laps, twisties, etc.) that would benefit from a slotted rotor.

 

I disagree.

My '81 550, with a single front disc, was prone to fading after a couple of OMG hard stops from high speed. (This is after the front brakes had been rebuilt, lines upgraded to stainless, etc.)

Having the disc drilled eliminated the fading by about 90% over stock.

Drilling has the same basic effect as slotting the rotors, allowing the hot "boundary layer" of gasses somewhere to go rather than causing the pads to "float" on the surface of the rotor.

Slotted rotors would be a very good upgrade, just be sure they actually FIT. Besides the bolt holes lining up and the diameter, the "offset" of the braking surface to the hub is paramount.

A couple of 80mph-zero hard freeway stops are all the riding conditions you need to exercise the brakes to their limit.

(I have ZERO fading issues with the EBC full-floating rotor on the other bike.)

 

Slotted rotors are great not only do they reduce the heat under hard breaking, they also reduce warping in the rotor due to the build up of heat.

 

I beg to differ with you. Its a 90 hp 4 cyl. I guess a 900 ninja is not hi performance enough or a 900 seca. In my book if you have an 11 sec motorcycle you need good brakes It might not handle as good as a modern day sport bike but if your grabbing that much brake in a corner your a fool. Money wise they cost me 25 bucks shipped for the pair. they are the same as solids. I will never push it to the limit i think they look better thats all.
Fitz they should work just fine they came off a virago. Same exact front wheel just gold rather then black the virago also takes the same forks and calipers. I know what your saying tho i wouldn't attempt to interchange rotors off another type of bike. I had a set of the rotors but i sold them with the wheels i had a while back everything looked he same. Probably going with ss lines also

 

http://www.speedlinez.com/UniversalBrakelines.html

 

cutlass, they'll be fine then. I like to use the EBC application chart (buried in their site, have fun) as a sure-fire cross reference; if the bikes take the same EBC replacement part numbers, the rotors will fit.

 

The rotors fit fine no problems. So anyone with an 85 or 86 700 with solid rotors can upgrade to 84- virago rotors the calipers are the same also. Its hard to find but 98- virago rotors are drilled and have 4 piston calipers vs 2 piston on the 85-6 maxims

 

I notice there are some drilled only rotors and some slotted/drilled rotors. Can anyone explain the difference of these (in theory)