hello everyone I hope I have posted in the right section, I am new to this website and new to mx bikes. I bought a wr426 and shortly after the engine broke. I posted here and was advised to part the bike out, I decided to get it fixed anyway. they put a 450 engine into the bike instead of another 426 and now it doesn't have a decompression lever. I know practically nothing about engines or bikes as this is my first one. I plan to buy a set of wheels so I can ride on the street and have another set for off road. are all bike wheels similar in size or am I looking for a specific size? a guy told me the best ones to get are XL rims and tyres. I will need to buy them second hand.