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Wildomar, CA
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Edited Date/Time
4/10/2017 4:41pm
This week's guest in the Vital MX forum QNA is Ross Maeda. Ross is one of the most well-known and recognizable faces in the pits due to his long-time association with KYB, plus his own suspension shop Enzo Racing. Outside of being a suspension guru, he's also one of the nicest and most helpful guys around, and has a list of hilarious stories a few miles long.
Since he got his start at KYB in 1976 (first as a test rider, then technician, and finally an engineer), he's had a hand in almost every top rider's career you can name off. Such as Bob Hannah, Roger Decoster, Mark Barnett, Jeff Emig, Jeremy McGrath, Ricky Carmichael, Chad Reed, James Stewart, Ryan Villopoto, and the list goes on-and-on. While he still works with KYB on a daily basis, he also has his own suspension shop known as Enzo Racing, which was started out of his garage and know holds down a solid shop in California. Outside of his shim changing and development duties, Ross spent years racing and riding all over the world, growing up as a local pro in Southern California and riding up into the late 2000s, until a spinal cord injury in late 2009. Even with this, his love for moto and the sport has been unshaken.
I'm lucky enough to have worked for the Bossman himself, so I've already asked him a million and one questions... but what would you like to ask him? Remember to bring your best questions, as he'll be peeking in here this week to answer them. As always, keep it respectful, and ask questions that you would like in a face-to-face meeting.
Two questions:
1) since you've worked with an amazing variety of top riders, what seems to separate the ones that can give better feedback and are truly helpful in development vs the ones that can't tell a broomstick from their ProTapers?
2) whether Pro or weekend warrior, what would be an effective way to improve any rider's ability to discern what the suspension is doing and how to make changes to improve the bike? In other words, how can riders improve their sense of what's happening with the suspension while they ride?
My question is about fork subtanks. The best suspension I have ever ridden was on a CRF 450 that you did for your brother years ago, and it had a subtank system installed.
I never see them anymore-are they still available, and do you think they can improve the KYB SSS fork performance on square edge bumps? Thanks!
With all the types of suspension and with all the different combinations of coatings you can get done now, what is your favourite? Kashima? DLC? Ti-Nitrate?, Air or spring forks? And what would be your ultimate suspension package if money was no object and Why?
Thanks mate.
With so many pros opting to run springs, do you think the air forks will die off again or do you think they're here to stay?
Also, many on these forums and magazines say the KYB SSS forks are the holy grail, what's your opinion?
The Shop
2. The best way to learn how to feel what their bike is doing suspension wise, is to try different adjustments and try to feel what they do on the track. Try different sag heights, fork tube positions, etc. I've told riders to learn what the adjustments do so that when they are between motos and have a problem, they will know whether to go 2 clicks stiffer or 10.
Thanks for doing this. I love reading your Facebook stories and always get to check out the cool things you are working on. 2 questions for you.
1. I see you are doing a lot with the shock subtank. What is the purpose of the subtank and what are the adjustments for on the subtank? Will this be available to the public?
2. What is your opinion on the KYB PSF2 fork?
Thanks!
I've got an older steel shock body of yours on a 2006 YZ250 two stroke. It was a two piece design with a steel body / aluminum resiviour. I took it apart recently, and noticed there still was hardly any wear inside the steel body.
Is this still the hot setup versus all aluminum body? If so, why don't more of the factories adopt this?
I am 185lbs 6'1" long arms and legs riding a 2008 yz250 with race tech intermediate motocross valving and .46 and 5.4 springs 95mm sag and flush front forks. I have my clickers centered and 1.5 high speed.
I feel like I need stiffer springs and much softer compression dampening. When I reduce compression damping right now the chassis starts to wallow. Please help me cause I am at my wits end.
Regarding upgrade surface coatings to reduce friction, we have had the best results with Kashima coating on aluminum surfaces and DLC on steel surfaces. Personally I prefer the KYB PSF air fork but mostly because of the wide range of tunability they have over the coil spring fork. I was injured before I ever got to ride the latest air forks, but I had experience with the early systems KYB produced in the seventies, and I liked them too. AIr spring and coil spring have advantages and disadvantages over each other, and each rider can have their preferences, but for sure, I believe that finding the best setting with either requires some testing.
1. Did the KYB move to India ever happen? If so, did it change anything in your day to day?
2. I was probably one of the few that liked the progressive springs on my '98 KX250, but all the local shops
preferred to go back to a straight rate. Did you like that setup? What prompted Kawasaki to go that route?
Thanks!
i have a 06 kx450 and from what i've found the forks were somewhat unique to this year model.
So my question is would it be worth the money to buy newer components or would just upgrading what i have be good?
Pit Row
2. Personally I did not like the progressive spring rate set up on the production '98 KX line. I felt that they allowed the fork to dive excessively. THe combination of coil spring and air spring (oil level air volume) creates a linear spring rate then progressively climbs in the later part of stroke. The progressive springs made the fork feel like it had a dip in the first half of travel in my opinion... I have no idea why Kawasaki chose to use that type of spring..
Who was the rider you were most nervous or worried about working with?
who was the most difficult to work with? who was the most enjoyable
Anyway, am an automotive engineer who really likes to make data-driven decisions, and have always struggled with the subjective nature of suspension calibration.
How much do you guys rely on dyno testing and simulation/ models to make improvements on suspension? As the suspension systems get more complex do you foresee there being an advantage to this type of approach compared to track testing? I know there are simple shim-stack modeling packages out there that can help you get close, but I think there may be some untapped potential in the 1-D and 3-D CFD realm...
John
My question is, how often have you worked with a guy that had "their" setup (i.e. a prototypical way to setup the suspension)? What was it like working with this type of rider? Were you ever able to get them to come around on a different setup or way of approaching the suspension?
You don't have to name any names, but I've always wondered about this.
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