Affinity Heat Finish XL T Bar are some really great pro scooter bars! The Heat Finish colorway is unlike anything else on the market. Each tube is hand spun and heated to attain the color gradients then they are carefully welded and then transported to powder coating where a clear protective coating is applied. Heat Finish takes time and a careful hand. Theyâre simply badass. The XL T bar is constructed from American sourced 4130 Chromoly, the same material used in NHRA Race Car Roll cages and BMX bike frames. The material is processed by hand and is carefully inspected upon each process. They are TIG welded by John Radtke & Chris Gascoigne then powder coated to protect the metal and showcase the work.