01-07-2018, 02:42 AM
(01-07-2018, 02:18 AM)Redbird_imp Wrote: An option I am considering is a Conti Road Attack 2 in 110/80 x 18 paired with a Conti Trail Attack 2 in 150/70 x 18. The tread patterns are similar and a BMW K1100LT rider reports that they are an excellent combination for his machine.
PR3 tires - Bike Bandit currently shows that they have Michelin Pilot Road 3 front in 120/70 x 18 and PR3 rear in 160/60 x 18. I believe Redbirds runs this combination. Don't know how many of each that they have but they show that they can ship these when I last looked less then 5 minutes ago.
Interesting tread, not cheap
https://www.bikebandit.com/tires-tubes/m...gKlDvD_BwE
A 150/70 should be slightly over a 2% increase in circumference over a 140/70.
If the aspect ratios are correct, 70% of 140 mm = 98 mm and
70% of 150 mm = 105 mm. With an 18" (547 mm) rim, that would be 2050 mm circumference versus 2094.
I am cautious about larger tires, as I replaced the Metzler on my Triumph with a Shinko of the same size numbers, but the Shinko was so much bigger that the center stand no longer allowed rear tire rotation to lube chain. Should not be an issue on the CB1100, as the center stand clears the rear tire from the ground on mine by ~ 1.5 " (38 mm) and the increased radius of a 150/70 is only about 7 mm. However, I am so extremely satisfied with the CB1100 gearing, I would not want to change it at all.
The larger Shinko in the Triumph had a negative affect on acceleration.