Upgraded Calibre Bossnut, men's mountain bike. My son upgraded to the Trible B whilst there, hence the sale. Medium framed, so perfect size. 11 speed with single front.Magic Mary tyre on rear, WTB Vigalante on front. The item "Upgraded Calibre Bossnut, men's mountain bike. 27.5 MTB" is in sale since Tuesday, January 19, 2021. This item is in the category "Sporting Goods\Cycling\Bikes". The seller is "samary4500" and is located in Shepton Mallet. This item can be shipped to United Kingdom.