Wave rotors -Petal rotors - are they really better? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
General V-Strom Discussion Talk about all things V-Strom not limited to just one of the above models

 11Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 28 Old 07-12-2019, 09:31 PM Thread Starter
Stromthusiast!
 
RestoRider2017's Avatar
 
Join Date: Jul 2018
Location: Apopka Florida NW of Orlando near a twist in the road and a hill on the horizon...
Posts: 523
Garage
Wave rotors -Petal rotors - are they really better?

Some of the newer model bikes coming out have these petal type rotors or Wave rotors.
Even the dirt bikes have them too.

What benefits do these offer over standard rotors ?

Is this something that might show up in the Vstroms Future ?

2017 DL 650 , Shad 23 bags, Givi crash bars, 32 watt LED aux lights , Goldwing pegs, Metalic silver front fender, Lazer cut aluminum Chain guard, Madstad 20" windshield
light smoke tint , Blu/blk Driven Racing Billet bar ends, Dbl Take adventure mirrors , Gel seat cover, Twin tool tubes, Givi 30L top case, Suzuki Engine cowl, 45 years in the
saddle and counting, Yoshimura 3/4 exhaust system simmering on low in the money oven.
AMA member, RestoRides MotorSports CEO

Our dog Trixie 7 year old Chihuahua / Min Pin mix Shelter Rescued Smartest dog we have ever owned. She's great and does lots of tricks.
RestoRider2017 is offline  
Sponsored Links
Advertisement
 
post #2 of 28 Old 07-12-2019, 10:53 PM
Stromthusiast!
 
STCorndog's Avatar
 
Join Date: Nov 2016
Location: Kentucky
Posts: 3,697
They are supposed to be better at not warping when hot. My Tenere has them and I can not feel any difference. But to be honest I have never really used my brakes hard enough to matter I guess.

"If its not broke yet, it can still be fixed"
STCorndog is online now  
post #3 of 28 Old 07-12-2019, 11:14 PM
Stromthusiast!
 
Rolex's Avatar
 
Join Date: Feb 2013
Location: Sydney's East
Posts: 3,006
They help keep things clean, the crud gets hit by the cut-outs and is thrown clear.

Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.
Rolex is online now  
 
post #4 of 28 Old 07-13-2019, 12:41 AM
Stromthusiast!
 
bombloader's Avatar
 
Join Date: Jun 2019
Location: Meridian ID
Posts: 12
Garage
I know for a long time they seemed to be a Kawasaki signature.
bombloader is offline  
post #5 of 28 Old 07-13-2019, 04:04 AM
Stromthusiast!
 
Join Date: Dec 2005
Location: Gold Coast, Australia
Posts: 3,754
You can buy wave rotors from eBay now m- I've installed them on two 650's. The big advantage of the more mellow ones was offroad where they cleared grit off the pads a lot better, they do work better than OEM pads all round though, particularly in wet conditions.

Downside, not recommended with sintered pads as they wear quickly. Off road with organic pads though they are noticeably better.
Cryoman likes this.
PeteW is offline  
post #6 of 28 Old 07-13-2019, 10:39 PM
Stromthusiast!
 
Join Date: Aug 2007
Location: Omaha, NE
Posts: 7,667
Gotta think

Usually more rotor mass is better, especially for sporty street bikes where the brakes are likely to be used hard. On dirt bikes, I can see that they might self-clean better than solid rotors.

Moslyl I think they are for visual appeal rather than performance.
Jimding is offline  
post #7 of 28 Old 07-14-2019, 12:03 AM
Super Moderator
 
Brockie's Avatar
 
Join Date: Jul 2013
Location: Gatton, Queensland, Australia
Posts: 4,824
Garage
Wave rotors originated in dirt bikes years ago for their self cleaning benefits and have since migrated on to other bikes for some practical but mostly styling benefit.

2010 Weestrom; 2017 Kawasaki Versys-X300; 1988 Suzuki GSXR1100
Brockie is offline  
post #8 of 28 Old 07-14-2019, 08:18 AM
Stromtrooper.com Sponsor
 
richlandrick's Avatar
 
Join Date: Oct 2007
Location: Clover, S.C.
Posts: 4,486
+1 on the above.

We sell a lot of brake lines. It is an upgrade that results in tangible improvement. The upgrade does what is claimed.

The reps occasionally call me in an effort to market their brake discs. My response is always that i have owned over 40 motorcycles in my lifetime and never once needed to replace a brake disc.

That isn't to say that people don't experience warped discs, but with modern floating discs it is truly rare.

Wave rotors make a difference for guys riding true dirt bikes in muddy conditions. In the same conditions on a V-Strom you would not need brakes since that kind of mud would have already locked up the front wheel between the tire and fender.

I strongly suspect the greatest improvement a person can make to their V-Strom (unwarped) disc is to de-glaze it and the pads. I think it is overlooked because we are programmed from the moment we start watching TV that to get an improvement we need to buy something.

This video shows the deglazing the disc, but the pads can need deglazing as well.


Last edited by richlandrick; 07-14-2019 at 08:27 AM.
richlandrick is offline  
post #9 of 28 Old 07-14-2019, 12:42 PM
Stromthusiast!
 
NVDucati's Avatar
 
Join Date: Sep 2015
Location: Northern Calif
Posts: 944
I agree that wave rotors score more points for styling than for the fractional physics gains. I have never put them on any of my bikes.

The only time I gave them any serious consideration was on that BMW K1200rs I had for a few years. It didn't suffer from a lack of power so the rotational inertia penalty didn't matter. That bike was genetically over weight and had the telelever suspension so saving 4 pounds of rotor weight, while tempting, was still no sale.

What made me think about getting wave rotors was brake fade when riding in the Sierra mountains. After 30 - 40 minutes of carving my way down a mountain the brakes would heat up enough that I'd have to alter my pace. At one point, I replaced the front pads with some boy-racer units which helped but they were really (yikes) bad when operating at more normal riding conditions. I even bought another 2 OEM pads and tried a combo of both street and race pads on the front end. Yes it proved to be a compromise _ at best. I could not find any definitive specs saying how much cooler wave rotors would run. I did not want to join that lottery so I sold the bike.

Member: AMA
Current Rides: '14 DL1000 ADV, '06 SV650N, '93 900CBRR, '74 Ducati 750GT ['02 BMW K1200rs SOLD Aug '17]
NVDucati is offline  
post #10 of 28 Old 07-14-2019, 03:36 PM
$tromtrooper
 
jokermtb's Avatar
 
Join Date: Mar 2010
Location: plymouth, michigan
Posts: 3,091
Garage
The angled outside edges of the wave rotors create a continuous cleaning edge - helps clear the disc of dirt. Which is why they're so prevalent in the dirt world. As seen on street bikes, there's no real benefit other than that they look cool. Sometimes looking cool is reason enough.

"Side effects may include: Mild kidney explosions...Testicular cranberrying... And Rectal hallucinations."
jokermtb is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome