Bigger Front Wheels

[DOTapproved]

hello everyone, i am sure this question has been beat to death...

but i just purchased a 2014 spyder rs-s last month and i see a lot of spyders on the web with big front wheels... (look awesome IMO)

what needs to be done to the abs/vss/tcs?

thanks for all the help in advance

 

[Chupaca]

Depends....

on how much bigger... some go bigger rims but lower profile tires keeping the size similar and loosing the fenders. Then some go hog wild but never ryde much mostly show so it doesn't matter the effect. For the rest :dontknow: how they deal with the systems these machines have to keep you safe ( yet sometimes annoying) :roflblack:

 

[asp125]

Anything with a rolling circumference much bigger than the stock wheel tire combo, might require the electronic systems to be recalibrated. Can probably go plus one or plus two without any noticeable changes.

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[robertl]

Didn't someone recently post about moving up a few sizes on the front tire (what was available at that tire shop) and the computer whining?

165/65/14 to 185/65/14.

He ended up lowering the air pressure a little and that was just enough to make the computer happy.

I believe someone else chimed in to say there was a little flexibility in height of front to rear ratio but beyond that and computer whines so you are stuck in limp mode.

Maybe if you increase the rear a little it would allow the same increase in the front? Maybe someone else with better knowledge than I add on here.


I've seen pictures online myself of larger front tires. Most are just larger rims with lower profile tires so it appears larger but really it is just more rim and less tire but same height.

Others though definitely appear to have taller front tires such as this: http://website.saviniwheels.netdna-...er-Tire-Can-Am-Spyder-SV50S-White-Black-1.jpg

 

[DOTapproved]

i have 245/30/20s going on it... it about 17% larger OD then the factory... so the vsc will engage at 30mph, i have seen a lot of them out there with a simialir set up, but nobodys wants to say how they are doing it.

thanks for the info

 

[Bob Denman]

:welcome:
My guess: they're mounting the speed sensors, to just one wheel. :dontknow:
If you can get it to work: we'll need to see some pictures! :thumbup:

 

[robertl]

Did you get this working?

 

[AMTJIM]

There was some effort back when these were first released for sprocket pulley and gearbox changes to lower rpms. One of the combo theories included a larger diameter rear tire, there is a slightly thinner tread 275 that will fit the rear rim. That may get you there.

 

[DrewNJ]

If you have an SE forget about it. The SM is much more forgiving and the older SM is even more forgiving stock.
Some have relocated the sensors to one wheel, others have been able to "adjust" the position of the sensors on the tone ring, others I "heard" are removing/narrowing a few teeth?? Someone else mentioned that there is a different sized ring from something else that works.
I'm not in that scene so I didn't absorb the details. There is a guy named Lou in Philly that does a lot of custom stuff for the shows. I'm sure he has it all figured out....

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[Bob Denman]

Lou's a member in here, and might just be a good source of information. :thumbup:

Look up "LOURACING"