Early this Saturday morning: Packed the wheels into the boot ready to head to a local tyre place. Booked an early slot to attempt to beat the rabble of traffic that wakes up and slows things down mid morning on weekends. 15 minutes later and a quick drive home: Tyres all fitted! Decided on a set of Continentals, AllSeasonContact 2 specifically, 225/55/17 for those interested, W speed 101 XL for the boffins. Normally, I would have got some Michelin CrossClimates (the same as currently on the 19s), but for all intents an purposes, the internet pretty much stated "they're newer, so they're better" and I pretty much just went for them based on that. Presumably, once Michelin release a CrossClimate 3, they'll be immediately top dog again. WIth a 15% discount from BlackCircles, the tyres came to £546.44. Whilst offloading, took the opportunity to weigh one up: So 16.9kg, so the tyre is a smidge over 10kg, I suppose as light as they're gonna get. Weights of actual tyres are actually never ever mentioned or considered in the scheme of things, which does seem amiss, I would be curious about whether there's a correlation between performance, profiles and other factors. Originally, the plan was to fit these at a later time, as I would need to source different wheel bolts, to transition from the ball seat to taper seat that aftermarket wheels would have. Fortunately though, the kind people at Driftworks where I purchased the wheels from threw in these alongside spigot rings: A set of tuner wheel bolts, which pretty much mean there's no obstacles. It's pretty much a standard wheel swap. I took the opportunity whilst jacking up the car to also fit these: These were purchased from lllparts ages ago, I think they're meant for things like Audi's or whatnot, and were mentioned in a few previous posts. Specifically that the intended part doesn't exist anymore, and previous posts suggest to trim these down, given they stick out a bit as per the pic above. I'm probably just going to leave them as is for now, as they actually help highlight where to jack at a glance. I believe I've tallied the rubber parts in an earlier post, so the other bits here came to £77.34 with shipping, so a bit on the expensive side. Just a case of pushing the rubber part into the holes on the underside, then slide the other part into the rubber: Then a jack is used to push the other part until it clicks into place in the rubber: So pretty much jack up a corner, take existing wheel off, set up the new wheel with the spigot ring, grease and whatnot and fit the new ones on. So new wheel on (much easier as much lighter!): Clearance of the caliper for the front: Then the other side: Torqued the bolts up to 140Nm, and then off to look at the wheel caps. The Bola wheel centre caps supplied with the wheels have a metal Bola branded disc of sorts attached to the cap with a sort of adhesive: So with some hacking with a craft knife, allowed some leverage to get the discs off: Then, stuck some random Skoda wheel stickers. These were 56mm stickers from AliExpress, £4.37: The stickers are a tiny bit larger than the caps, so 54mm would be the more appropriate size, but I reckon they'll be fine as is. If they don't and fly off, well, I'll just source smaller ones. Those just push fit: Done: Day trip out showed enough differences over bumps and ramps, and effectively Sport mode being as comfy as Comfort was with the 19s. Wife also found it much easier to keep going too fast on the motorway, so maybe the weight reduction has done something. Time will tell in regards MPG, hopeful of an improvement. Once home though, noticed a grinding when slowing down, and a whine when reversing. The rear left wheel was warm, and sure enough, some water over the brakes and they were steaming. So looks like the caliper is stuck, so I'll see if I can address that tomorrow. I'm loathed to spend any more money on the existing brakes as some other things are on the cards... Gave the old wheels a quick clean: Then lugged one of them into the house to weigh: So 23.55kg on the scales, so over 6.5kg a corner! So more than 26kg of unsprung weight saved, which I'm sure will mean all sorts of benefits. The 19s are in a horrid state, and with one slowly leaking air, all would need refurbishing, which would be a tiny bit more cost wise if there was a desire to keep them diamond cut. The tyres are probably usable for a few more months, though some have more wear on the inside of the tyres, which does suggest I should probably get the geometry checked. I'll stick them up for sale, hopefully for what is considered a bargain price... For now, the rear left caliper would be the current urgent thing to look at. Maintenance: £2370.22 Upgrades: £2994.25 (+£628.15) Miscellaneous: £820.07