Quote:
Originally Posted by ouroboros2015
Am I overthinking this?
Cheers.
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Probably
Try one of the online calculators like tiresize. com/tyre-size-calculator
You are going to raise the seat half an inch and go from 789 revolution ls per mile to 761 (speedo reads 50 at 51.8)
Seat height and mudguard clearance would worry me more than gearing or the speedo.
110/90 R18 is closer if they do it.
Andy
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