Any tire size suggestions for an K75s?

[rpm420]

I have an 88' k75s and it is due for tires. Right now i have stock size bridgestones, and was wondering if any one had any suggestions for some replacements.Maybe a wider size?

[wmax351]

Bridgestone S11's are good. Handle well, good price.

[Chaos]

Bridgestone S11's are good. Handle well, good price.

+1

[Dennis de Vries]

Here in europe the default answer to that question is Bridgestone bt45, dunno the s11's... I do advise strongly AGAINST Michelin Pilot Active though, if you plan to ride in wet (ish) or cold (ish) conditions (damhik)

[wmax351]

BT45s are nice, but the rears only last a couple thousand.

[richarddacat]

Avon RoadRiders are what I'm running on my 88.

Sizes and styles for our bikes are kinda limited. Upgrade to the three spoke wheel and more options are available.

[detbmw]

BT45s are nice, but the rears only last a couple thousand.

A pair of BT45s lasted 5K on the back and 6K on the front. A pair of Metler Lazertecs lasted 3,700 on the rear & 4,200 on the front. I have a pair of Shinko Tour Master 230s on now. So far so good at 3K.

[K75RT Keith]

Tire width will be limited to rim width and center stand interference on the back and fork clearance on the front..  rear 2.75" or 3" rim maybe 140-80  front 110-90 or 80

[TimTyler]

I've always used 110/90V-18 (f) and 130/90V-17 (r) except for the  $12 Roadrider 140/70v-17 I have on the rear now. It lowered the bike a little and handled fine. Plenty of tread left after 8k miles of slab and it hasn't flattened out too much either.

I like the Pilot Actives.

Spitfire II's were okay.

Currently with the Roadrider I have a Lasertec on the front and it felt good for the first 4k miles then started loosing confidence.

Had a pair of Shinko 230's last spring and they were uneventful but did okay.

[Gio]

Hi Tim ... just re-reading this post, so you run a 110/90/18 Avon on the front ... according to Avon data sheet that would be 5 mm wider and 21 mm larger OD than the stock 100/90. I have read that a 110/80 fits but was surprised to read that a 110/90 would.

[TimTyler]

Gio,

110/90-18 is the stock size for Y-spoke K75 wheels.

I think the only Avon tire I've had is the rear Roadrider I bought at the discount.

[Gio]

Ah yes ... I was forgetting that - the 3 spoker stock size on the 75s is 100/90 and I can just about get a little finger clearance - hence the surprise at 110 ... thanks for clarifying!

That rear you got was a real steal and seems to have worn well eh?

[84K100RT]

From what I can see 100/90 or 110/80 or 110/90 will work. I have used all 3 on the K100 which has same front wheel as far as I know.

On rear I have 130/90 or 140/80, both fit. I have now determined a 150 will also fit but no BT45 in that size.

My one thought on tyres is listen closely to those who ride in same type of weather and road conditions as the person asking the advice. Also watch the pressures as a K is near the upper weight limit for most tyre sizes so pressures need to be high to stop tyres getting too hot and increasing the wear rate.