My S40 has 650b 38mms and mudguards. I had such trouble getting mudguards on the Silvio that I was worried about space, but I now see that I could have fitted 700c 38mms, or wider 650b. Easily. But my S40 works really well on gravel as it is. And it flies on tarmac.
My S40 has 650b 38mms Gravel King. Loads of places seem to sell tubes that are too wide to go in. Fat, for MTB. After a lot of searching I found Specialized.
These are the only ones that fit.
No hydro brake levers are compatible with my peculiar handlebars, therefore I have Hy/Rd, which...
I had a terrible time failing to fit tubeless. Really not fun. For some reason I could not find tubes that fit the tyres. That was the only reason I was attempting tubeless. Then I finally found a source of tubes. What a relief that was.
The problem with drop bars is that the handlebar clamp has to be way behind your hands. When I first got the Silvio the clamp was pinning me down like the harness on a rollercoaster. After lots of experimenting I got Crononero with the ends sticking up. The hand position is similar to drop...
Cruzbike does not need masterlink. Remove the wheel and unscrew the tensioner and slide the chain out without breaking it. But you have to be very clever to put it back without getting in a frightful twist.
When I bought the S40 I forgot the optional headrest, but then found that it was not necessary. It would have been a waste of money. I needed the headrest on the Silvio. Does the S40 have a steeper seat than the Silvio?
I am in the pedestrian places all the time on my S40, doing the very tight zigzags. My favourite dance. I used to do it on the Silvio. I thought the Silvio was good at this, but the S40 is even better. I cannot remember which of these is longer. Maybe it is due to having 650b.