First test ride with new tires.
Re my post above "The stock front size rated at 71 (761lb)". I just checked and the Avon Cobra AV71 150/80-17R is supposedly actually a 72H rated tire so 72 (355kg 783lb) rated at 41psi. That is a pretty big 13.5% drop from 783lb to the Michelin Scorcher II 140/75R17 67 (307kg 677lb) of the 140/75R 67V.

It is also a big difference in Revolutions per mile (km)
150/80-17R 762.53 (473.82)
140/75-17R 798.18 (495.96)
Difference 35.64 (22.15) 4.7% and must be borderline for affecting operation of ABS on Roadsters
150/80-R17 vs 140/75-R17 Tire Comparison - Tire Size Calculator | Tacoma World

Compare that to the Michelin Commander II 140/80-17 Bias ply.

The Avon Cobra AV71 150/80-17R 72H rated so 72 (355kg 783lb) rated at 41psi. That is a much less 8.6% drop from 783lb to the Michelin Commander II 140/80-17 Bias ply 69 (325kg 716lb)

Revolutions per mile (km)
150/80-17R 762.53 (473.82)
140/80-17 781.14 (485.38)
Difference 18.60 (11.56) 2.4%
150/80-R17 vs 140/80-R17 Tire Comparison - Tire Size Calculator | Tacoma World

Comments?
 
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No problem with ABS. Why would I want to ride a radial (EXEDRA MAX) on rear and a bias tire up front? The Scorcher is a radial tire. Handles great.
 
Last edited:
sonny said:
No problem with ABS. Why would I want to ride a radial (EXEDRA MAX) on rear and a bias tire up front? The Scorcher is a radial tire.
Click to expand...

Your right the Michelin Commader II is available in both radial and Bias Ply.
As a Rear tire in Radial in the same size as your Scorcher, so people must be reversing them for front use.
  • 140/75 R17 67V Radial
Michelin Commander II Tires - webBikeWorld

Anybody run the Michelin Commander II 140/80-17 Bias ply 69 (325kg 716lb) ?
 

Unless you are doing stoppies, weight on your front tire will not exceed that 67 load rating.
 
I run the Michelin commander II's on the Harley . Both front and back are radials. Very good tires. If they made Commander II's for the Rocket I would have bought them. As is the combo I have now on the Rocket is just as good as the set up on the Harley. Very pleased with the way it rides and handles. Time will tell if any problems arise from the tire set up. I will be the first one to post any problems which might occur.
 

There is a Radial version too
SKU Table | Commander II tyres | Michelin US
  • 140/80R17 69H
Full Michelin range here:
Tire Size List : Motorcycle & Scooter Tires by MICHELIN
These may suit our Rockets:
Anybody tried the Michelin Pilot Activ?
  • 140/80R17 69V
MICHELIN PILOT ACTIV Tire | MICHELIN USA



The 140/75R-17 67V in Scorcher II and Commander II versions:

It looks like the Commander has a more water dispersing tread

Michelin Tire Selector | 140 75 67 V 17 tires
ScorcherII


Commander II
 
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