Tyre direction and pressure

[shephga]

Hi,

I'm lucky enough to have a new job closer to home, so close I can bike with 10-15mins and I've not regulary cycled for 22 years until now. My bike is a 3+ year old Carrera Vulcan, I've read up and found the knobbly's weren't efficient for my route which is mainly road/rough pavement. I've bought some Schwable City Jets and fitted them (was a pain) and now have two questions.

1 - Max tyre pressure is 85psi, I've pumped them up to 60psi and they're rock hard. I'm a 15 stone 9lb bloke with a daily backpack load of an additional stone or so. I want comfort as I dont want to put myself off biking from a sore arse etc. Should I really go to max pressure ?

2 - I'm embarrassed to say the rear tyre is on wrong, the drive arrow is pointing in the wrong direction. The tyre was an arse to put on, can I get away with leaving as is ? The tyres are slick.

Thanks in advance

 

[shephga]

Cheers all, I've checked the manufacturers website, the drive arrows indicate optimum direction for reduced rolling resistance, I'll wait til for puncture before I change the tyre direction. With regard to tyre pressure, many of the tyre reviews on amazon and other cycling pages say to get the full benefit you have to take the tyre up to 85 psi which just seems crazy, especially with factors such as rider weight, what I'm carrying and I've just read even rims (I think this means the wheels ??) have pressure ratings too. I'll stick at 60 and see how they feel tomorrow, the tyres keep their shape with me mounted so I think it should be ok. I had a bad experience with a petrol station air pump and my grifter back in the 80's, I basically inflated the tyres til they were like moonbuggy wheels, felt great for the first few feet until the tyres popped...