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SM new front rotor - OEM or aftermarket?

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My '06 SM needs a new front rotor (after 16K miles it has 3mm or so of play, so the outer part of the brake disk can rotate a bit relative to the carrier). So I'm wondering if I should just get a new OEM rotor, or maybe upgrade with some kind of better performing aftermarket rotor. Any suggestions for replacement front rotors that are better than OEM?

I don't race my SM, it's just my city bike, but I am pretty hard on the brakes just because it's fun. I don't think I want to do more significant upgrades (caliper, master cylinder, etc.), but if I can keep the stock caliper and get better performance from an aftermarket rotor, that would be cool.

 

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most of them are stainless steel .. without going larger i doubt any performance gain would be noticeable .. i have heard though that a straight iron disk works better, but then you have to worry about corrosion and it looking like a dogknot, i think they mostly use them for racing .. so that said, a new oem would probably be best, 'or' ive never heard of it, but it may be possible to knurl or press the rivets and tighten yours up, ask a machine shop ..

Edited by cowpie

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5 hours ago, sharkcontrol said:

I replaced mine with an aftermarket wavy disc.Have had no problems with them.

My original discs also had the rivets issue but the bike shops says not economical to repair.

What wave disc do you have? I can't find any 310 ones.

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Here you have all the info you need to order the parts you should look for bike

http://www.braking.com/catalogue/intro.php?lang=&ricerca_vis=ricerca_veicolo&ricerca_effettuata=1&rif_marca=SUZUKI++++&rif_modello=DRZ+SM++++++++++++++++++++++++++++++++++&rif_cilindrata=400&rif_anno=2008

 

I use braking disks for supermotard and also for the offroad wheel set on my E: you will love them

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On 6/19/2017 at 2:41 AM, sharkcontrol said:

I replaced mine with an aftermarket wavy disc.Have had no problems with them.

My original discs also had the rivets issue but the bike shops says not economical to repair.

Do you think the wavy disk is better than non-wavy OEM? Does it run cooler? I'm always worried about overheating my brakes, since the rotor is so thin and flimsy. I did recently glaze my brake pads and had to sand them down a bit to get them to grip properly again.

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16 hours ago, Timisoreano said:

Here you have all the info you need to order the parts you should look for bike

http://www.braking.com/catalogue/intro.php?lang=&ricerca_vis=ricerca_veicolo&ricerca_effettuata=1&rif_marca=SUZUKI++++&rif_modello=DRZ+SM++++++++++++++++++++++++++++++++++&rif_cilindrata=400&rif_anno=2008

 

I use braking disks for supermotard and also for the offroad wheel set on my E: you will love them

Nice, thanks! Pricey though. What do you like about their disks, what makes them better?

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Personally gniewko i have not noticed any difference on stopping power.It will remain to be seen how long these discs last but the cooling capabilities on these aftermarket ones i would say are much better than stock.

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2 hours ago, gniewko said:

Nice, thanks! Pricey though. What do you like about their disks, what makes them better?

Braking power is about the same (you may improve it switching to another caliper and pump), but I feel the "first attack" is quicker and more responsive at the first bite than the standard one, even more if you use BRAKING brake pads designed to go with their disks. I cannot say anything about overheating because usually I'm not so aggressive on the brakes to let them fade.

Beside this I found these hardware at a very convenient price: the company is based in Italy so for me it has been easy to find good deals.

I guess that on e-bay or other web based shops you could find the disks at goos prices too.

 

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7 minutes ago, gniewko said:

Alright, I just ordered a Braking wavy disk from the Thumpertalk shop. Thank you, everyone!

Did you order the rear, or buy the last 310mm? I couldn't find any 310mm Braking rotors in the TT store.

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4 hours ago, HansLanda said:

Did you order the rear, or buy the last 310mm? I couldn't find any 310mm Braking rotors in the TT store.

Hmm... I ordered this one:

https://www.thumpertalk.com/shop/Braking-SK2-Series-Brake-Rotor-p4758656.html

It claims to fit the SM, so I figured it was the right size (meaning same size as OEM). I don't see the diameter specified anywhere on the product page. Do you think this one isn't 310mm?

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As you will see on the BRAKING web site, the rotor you have choosen has o.d. 320 mm (p/n WK055L):

http://www.braking.com/catalogue/intro.php?lang=EN

http://www.braking.com/catalogue/dettaglio_prodotto.php?codice_articolo=WK055L

You should know that most S-SM-E parts can be used on either model without any changes to be done... unfortunatly others ask for them. If you wish to stay with the 320 mm rotor, you must find/fabricate/buy a caliper braket that relocates it accordingly.

 

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11 hours ago, gniewko said:

Hmm... I ordered this one:

https://www.thumpertalk.com/shop/Braking-SK2-Series-Brake-Rotor-p4758656.html

It claims to fit the SM, so I figured it was the right size (meaning same size as OEM). I don't see the diameter specified anywhere on the product page. Do you think this one isn't 310mm?

It will technically fit the SM, in terms of fitting the rotor to the hub, but the spacing with the rotor and the caliper will not fit. The OEM SM rotor size is 310 mm, an uncommon size, so it is tough to find a direct fit. You can use a caliper relocation bracket to shim your caliper out 5mm like @Timisoreano mentioned and use the 320 rotor. 

The TT store should really note the rotor size.

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7 hours ago, HansLanda said:

It will technically fit the SM, in terms of fitting the rotor to the hub, but the spacing with the rotor and the caliper will not fit. The OEM SM rotor size is 310 mm, an uncommon size, so it is tough to find a direct fit. You can use a caliper relocation bracket to shim your caliper out 5mm like @Timisoreano mentioned and use the 320 rotor. 

The TT store should really note the rotor size.

 

17 hours ago, Timisoreano said:

As you will see on the BRAKING web site, the rotor you have choosen has o.d. 320 mm (p/n WK055L):

http://www.braking.com/catalogue/intro.php?lang=EN

http://www.braking.com/catalogue/dettaglio_prodotto.php?codice_articolo=WK055L

You should know that most S-SM-E parts can be used on either model without any changes to be done... unfortunatly others ask for them. If you wish to stay with the 320 mm rotor, you must find/fabricate/buy a caliper braket that relocates it accordingly.

 

Thank you both for the advice. I think I'm going to stick with 310mm then, and cancel my order. Yeah, the TT store should mention the size difference from OEM for sure.

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So now I have a choice - either stick with the OEM rotor, or go for the 320mm Braking one, with a bracket. Any advice about those choices? Is the wavy Braking rotor worth it, over OEM?

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