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Im looking at Dunlop Roadsmart 4 tires, with tubes (2018 CB1100ex spoked rims)
I can get these in 140/70 R18 and 150/70 - R18 for the rear.
Diameters are different of course at
140/70-18 - 653.2mm (Sidewall of 98mm)
150/70-18 - 667.2mm (Sidewall of 105mm)
Has anyone done such a width upgrade? Bike has ABS so dont want to cause any issues there either.
Is it worth doing even or just stay with std width?
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(09-13-2021, 02:40 PM)Rogerdj_imp Wrote: Im looking at Dunlop Roadsmart 4 tires, with tubes (2018 CB1100ex spoked rims)
I can get these in 140/70 R18 and 150/70 - R18 for the rear.
Diameters are different of course at
140/70-18 - 653.2mm (Sidewall of 98mm)
150/70-18 - 667.2mm (Sidewall of 105mm)
Has anyone done such a width upgrade? Bike has ABS so dont want to cause any issues there either.
Is it worth doing even or just stay with std width?
7mm difference is hardly an issue, so don't think about it, and ABS won't care about it either as it measures revolutions regardless of the sidewall height. Different tires of the same size designation will often have different actual size, also changes in tire pressure will affect the sidewall height and ABS will still work in those cases, correct?
'14 CB1100 STD 5 speed
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That is jacking up the rear by 7mm equivalent to a couple of notches of preload at the rear (not in terms of suspension stroke, just bike stance) which will make your bike turn in quicker. You may prefer that of course and may be of no consequence to you. If it turns in too quick compensate by jacking up the front preload by as much of the difference as you can to maintain the handling stance. This assumes you have extra front preload to spare. You could compensate by reducing preload at the rear too of course as long as it still leaves you with enough compression stroke for everyday riding.
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I have 150 on the back , no problems what so ever.
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Thanks for the replys
Has anyone seen a table that gives actual tire diameters for the different brands / models?
Just thought while I was doing this exercise I would explore that to see is there much of a difference from new / std with the different tire models.
Im interested to see what the current tire I have fitted, Pirelli Sport Demon 140/70 -R18, diameter new is meant to be.
