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I used 650x50 M on the back for An Turas Mor and it seemed fine on that gravel. It flatted on the road and I had to plug it but I'd used this tyre quite a bit already.
My missus had a Riddler on the back, which pissed out sealant within 1mi but was then totally fine. I've used Riddlers before and thought they were ok but I'd head towards more durable tyres for the longer events.
For speed, I'd want to look at actual Crr data or roll down tests because "feel" is too subjective.
hippy-
Thanks! Sadly Bicyclerollingresistance doesn't have data for the SG2 version of the Riddler, so the feel is all I have.
According to them Challenge Getaways should be extremely puncture resistance and have ridiculous low rolling resistance, but surely they should be too fragile? Also feel I'd be pushing it at 40mm, instead of 45.
barry
Considering running a Pirelli Cinturato H in the back, and a Cinturato M in the front, both in 45mm, for GBduro. Anyone on here with experience with the GB divide route who can weigh in on this?
I initially settled on WTB Riddlers but after riding them for a while I feel they are extremely sluggish and I hate them for long road stretches.