Bought a new battery for my GSXR1000 K5 from one shop, then a new battery and a horn for my 250 Superdream from another shop
K5 is one of the many 1958 Royal Enfield 350 Bullit 1980 Honda CB250N Superdream 1989 Yamaha FZR400 3BF 1990 Yamaha FZR400 3TJ 1996 Ducati 916 Biposto 2000 Honda CBR900RR Fireblade 2005 Suzuki GSXR1000 K5 2009 Suzuki GSXR1000 K9 Did have a 2021 Kawasaki Ninja 650, until it was stolen from the dealer last August The story of the Superdream is, when I was young (and stupid), I had a Yamaha RD125LC with a custom paint job, and my father had a 1980 V reg Honda CB250N Superdream in silver, as he is getting on in years, and, his health is deteriorating, I decided to buy one, as close to his as I could, and, restore it (if necessary)
Realised that my 996 cylinder head spanner fits the bevel head nuts. So fitted the heads correctly for the first time ever instead of guessing using a 17mm spanner 
minuscule thing i've done on the bike today: – picked this up from the doormat and opened package. have no excuses for not fitting now, apart from not being able to feel my fingers.
Doggy, Are the cold temperatures enough to make a significant difference? Tries to remember basic physics........all based from absolute zero(?) so if you set 40 psi on a summers day at 20 degC then on a zero degree day pressure would read 273/293 as much. Anyone got a calculator?
I don’t want to teach anyone to suck eggs but in practical broad brush terms, tyres are designed to deliver a hierarchy of parameters, grip, water removal and longevity. The design process looks at those parameters over a range of conditions so a psi or two isn’t that critical. However, refine your parameters to look at riding style, speed, tarmac conditions and such like and you get in to the realm of generating too much heat or too little heat if the tyre pressure is too low or too high by as little as 2 or 3psi. I have met riders who don’t check their tyre pressures for months on end (in one case, nearly 12 months) so big changes in temperature can make a noticeable difference to tyre performance. Physics constants are great on paper or in the laboratory but in practice, the mass of the air in the tyre is the only constant, variable temperature and volume make the calculation a bit less straight forward. Andy
The Nitron suspension for the Monster has been delivered so popped down to MR to have a look. Mmmm, nice Whilst I was there, had a butchers at the new Monster SP. Mmm, not so sure, looks a bit blingy and not a fan of a red seat pad similar to the original R1 Andy
Fired up and warmed through each of the 4 bikes in the garage. Having frozen my bits for long enough, I will leave doing the same to the 3 bikes in the house until tomorrow Andy
