Tyre Profile

[Ishrub]

Keep in mind it's 72 based on max weight. If you never reach max gross vehicle weight well...

What if we exceed it?

I am still a little hesitant to put the 140 profile fronts on my Roadster with the load rating they have.

 

[Ishrub]

It's actually a 72 on the side of my standard tyre.

Correct my bad.
Front Avon Cobra is model 71, Rear Avon Cobra is model 72 which can cause confusion with actual load ratings which vary for front depending on whether you get the H (Touring 16") or V (R3 and R3R 17") rated version of the Cobra front for R3s.

Avon AV71 Cobra Front Tires | 28% ($40.61) Off! - RevZilla

17" R3 and R3R

Front / 150/80R17 72V TL V speed rated radial

Front / 150/80R17 72H TL H speed rated radial

Front / 140/75R17 67V TL V speed rated radial

16" Touring

Front / 150/80R16 71V TL WWW V speed rated xtra load radial

Front / 150/80-16 71H TL H speed rated Bias ply

 

[Boony]

Did going from a 72 to 67 load rating bother you at all?

I have only ridden it twice since the type was put on. All I can say so far is that the bike feels better to ride. I went on the recommendation of numerous other people on this forum for a fair amount of time. No one has had a problem and I think everyone feels that a 140 tyre improves the bike by a wide margin. I think it is safe.

 

[TURBO200R4]

cobra seems great the only thing i notice its a little smaller which makes the bike stand up straighter when on the kickstand.
not a big deal but something to be aware of.
on the way home my cobra had a flat just as i got on my dirt road. i rode it .7 mile home a little hard to handle when the road was angled but made it home and the beads never came of the rim. put a mushroom plug in it and drove it a while but had to change because of a planed trip.
for what it is worth
some of us after a new tire has had a (for lack of a better word) tank slapper mine around 50 mph when u do not have any hands on the bars. after a new tire is mounted i always get mine up to 50 and ease mine hands off the bars to check.
my wobble happened when i put on my sun glasses

 

[Rock It]

Keep in mind it's 72 based on max weight. If you never reach max gross vehicle weight well...

Hi mate, so going off the chart posted by Ishrub, am I correct in thinking that a 72 (front) can handle up to 355 kgs and 84 (rear) can handle up to 500 kgs. Making the max gross weight 855 kgs? Then I subtract all the weights ie bike, passengers, luggage etc to see how much kgs I have left before I exceed the max gross weight?

 

[Claviger]

GVWR the max allowed safe weight is visible on the sticker on the frame. It’s not just straight tire rating.

The Avon 140 is a tough tire. I’ve been at the antilock activation point late braking into a turn with the back tire sliding around side to side backing in. Front never so much as flinched being tortured like that time after time.

 

[Ishrub]

Hi mate, so going off the chart posted by Ishrub, am I correct in thinking that a 72 (front) can handle up to 355 kgs and 84 (rear) can handle up to 500 kgs. Making the max gross weight 855 kgs? Then I subtract all the weights ie bike, passengers, luggage etc to see how much kgs I have left before I exceed the max gross weight?

Yep, sort of with some math, model/brand and theory twerks

The usual static dry weight of 300-350Kg and max permissible load (Owners manual says 235Kg (517 lbs.) for R3 standard) = 535-585Kg all up.

The reason they are much higher than that combined, is that they have additional load on the front tyre under braking as weight transfer occurs and loads in the rear from acceleration and deceleration.

Avon Cobra 140/75R17 67V TL Front
Avon Cobra 150/80-17 72V Front

AVON COBRA AV72 240/50-16 (84V) REAR
Bridgestone Exedra Max Radial 240/55-16 86V Rear

LI KG LBS
67 307 677
72 355 783

84 500 1102
86 530 1168

 

[Ishrub]

Owner's Manual - Triumph Rocket III Touring ABS

R3Touring Specs:
Wet Weight 869lb (395Kg) Max Payload 485lb (220Kg)

 

[Rock It]

Yep, sort of with some math, model/brand and theory twerks

The usual static dry weight of 300-350Kg and max permissible load (Owners manual says 235Kg (517 lbs.) for R3 standard) = 535-585Kg all up.

The reason they are much higher than that combined, is that they have additional load on the front tyre under braking as weight transfer occurs and loads in the rear from acceleration and deceleration.

Avon Cobra 140/75R17 67V TL Front
Avon Cobra 150/80-17 72V Front

AVON COBRA AV72 240/50-16 (84V) REAR
Bridgestone Exedra Max Radial 240/55-16 86V Rear

LI KG LBS
67 307 677
72 355 783

84 500 1102
86 530 1168

Thanks mate, with 2 people on it it leaves about 65 kgs for luggage which really is almost another person. I wouldn't carry that much luggage.

 

[Rock It]

GVWR the max allowed safe weight is visible on the sticker on the frame. It’s not just straight tire rating.

The Avon 140 is a tough tire. I’ve been at the antilock activation point late braking into a turn with the back tire sliding around side to side backing in. Front never so much as flinched being tortured like that time after time.

Bummer you don't live here, we could go for a ride together. Cheers