Free tyres!

[pritch]

OEM tyres aren't necessarily shite...

John, The key word is "necessarily".

I was not unhappy with the BT45s or whatever fitted to the 919 and was not wildly unhappy with the 020s that replaced them. Although the front did seem to scallop prematurely and they weren't *that* great in the wet.

The OEM 020s on the VFR were another matter, after a particularly wet trip to the KB Turangi gathering I tossed them, they were scary. Was much happier on the Metzeler replacements.

Something may lead me to try Bridgestones again in future, but right now I can't imagine what that might be.

[slofox]

You like pr2s im about to pull mine off and replace with the new conti sport when they arrive.If you want a spare 120 front done 2000km cheap let me know.

Don't have that bike any more mossy but thanks for the offer anyway.

Currently running BT016's and have a set of 016 Pro's waiting for next change - in about 1500km or so.

[JayRacer37]

Here is some info I have compiled on OEM Vs. Aftermarket tyres, based on a 190/55x17 BT016-PRO and a 190/55x17 BT016 BMW S1000RR OEM spec.

Tyre weight's are different, the BMW S1000RR OEM tyre weigh's 6.35KG, and the aftermarket PRO weigh's slightly more at 6.95KG. The tread depth in the BMW tyre is also a bit shallower - 1mm approximate different. Squeezing the carcasses (pushing down on the crown of the tyre) the BMW tyre feels firmer, and doesn't give as easily. When pushing the compound in with a fingernail, the rubber on the aftermarket tyre is easier to leave a mark in, feels a bit 'softer'. The profile looks a little flatter on the BMW, taller in the crown on the aftermarket. The labeling on the tyre differs, with a 'W' designating the difference on the sticker, also on the sidewall behind the 'BT016' mark, where the aftermarket has 'PRO'. Also on the sidewall is the 'RAZ' marking that is the official difference, 'RSZ' is the aftermarket.

I have some photo's but arn't clever enough to upload now, will try again tomorrow

[steve_t]

So the OEM tyres being different must come purely down to cost, right?

[SimJen]

So the OEM tyres being different must come purely down to cost, right?

Not always, I've read in magazines that depending on the bike and specific speed ratings etc, they can differ.

[Kickaha]

Here is some info I have compiled on OEM Vs. Aftermarket tyres, based on a 190/55x17 BT016-PRO and a 190/55x17 BT016 BMW S1000RR OEM spec.

Tyre weight's are different, the BMW S1000RR OEM tyre weigh's 6.35KG, and the aftermarket PRO weigh's slightly more at 6.95KG. The tread depth in the BMW tyre is also a bit shallower - 1mm approximate different. Squeezing the carcasses (pushing down on the crown of the tyre) the BMW tyre feels firmer, and doesn't give as easily. When pushing the compound in with a fingernail, the rubber on the aftermarket tyre is easier to leave a mark in, feels a bit 'softer'. The profile looks a little flatter on the BMW, taller in the crown on the aftermarket. The labeling on the tyre differs, with a 'W' designating the difference on the sticker, also on the sidewall behind the 'BT016' mark, where the aftermarket has 'PRO'. Also on the sidewall is the 'RAZ' marking that is the official difference, 'RSZ' is the aftermarket.

Is there any difference in load and speed ratings?

[Hitcher]

Here is some info I have compiled on OEM Vs. Aftermarket tyres, based on a 190/55x17 BT016-PRO and a 190/55x17 BT016 BMW S1000RR OEM spec.

Tyre weight's are different, the BMW S1000RR OEM tyre weigh's 6.35KG, and the aftermarket PRO weigh's slightly more at 6.95KG. The tread depth in the BMW tyre is also a bit shallower - 1mm approximate different. Squeezing the carcasses (pushing down on the crown of the tyre) the BMW tyre feels firmer, and doesn't give as easily. When pushing the compound in with a fingernail, the rubber on the aftermarket tyre is easier to leave a mark in, feels a bit 'softer'. The profile looks a little flatter on the BMW, taller in the crown on the aftermarket. The labeling on the tyre differs, with a 'W' designating the difference on the sticker, also on the sidewall behind the 'BT016' mark, where the aftermarket has 'PRO'. Also on the sidewall is the 'RAZ' marking that is the official difference, 'RSZ' is the aftermarket.

I have some photo's but arn't clever enough to upload now, will try again tomorrow

So apart from being "BT016s" they have nothing in common?

[Conquiztador]

So apart from being "BT016s" they have nothing in common?

They are both black?

[Kickaha]

They are both black?

Should be both round as well

[mossy1200]

They are both black?

Nope the OEM is grey cause you cant get heat into it unless you burn them.

[Hitcher]

Should be both round as well

One will be round, the other will be orthogonal.

[Big Dave]

That ornithology is for the birds.

[JayRacer37]

Is there any difference in load and speed ratings?

No, same load and speed ratings.

So apart from being "BT016s" they have nothing in common?

Tread pattern?

Should be both round as well

Yep, nailed that one Kick

[Eurotred (NZ) Ltd]

Here are the results so far at the halfway mark

NORTH ISLAND:

Drew - 10 votes
Slofox - 6 votes
Grant - 6 votes
Banditrider - 3 votes
Outforaduck - 2 votes
Dmntd - 2 votes
Hitcher - 2 votes
Gijoe - 1 vote
Nzsarge - 1 vote
Katman - 1 vote
Movistar - 1 vote
Sensei - 1 vote

SOUTH ISLAND:

Onearmedbandit - 4 votes

C'mon guys only 15 more days to get your votes in

[Scuba_Steve]

Fast Eddie for SI (gotta have at-least 1 more contender there)
Slofox for NI ("Grumpy old bastard" )