Dresden, Germany’s Sour Bicycles turned heads at the MADE Bike Show earlier this year with their prototype Bad Granny, and we’re excited to share the news that they are finally available for pre-order. The Limited Edition Sour Bicycles Bad Granny is a collaboration between Sour Bicycles, Cyber Cycles, and Brainfart Industries. According to Sour, it’s “the most ready-to-klunk Bad Granny build we’ve ever dreamt up.”
This special edition of the Bad Granny is limited to 10 sets and features raw steel cranks, a raw steel handlebar, and a super special integrated dropper post lever–perhaps the first of its kind? While it might look like an OG mountain bike, it’s finished with modern specs like Boost hub spacing, dropper post routing, the ability to run a 100mm suspension fork, clearance for 27.4 x 2.4″ or 29 x 2.4″ tires, and a 31.6mm seatpost.
The Limited Edition Bad Granny comes sans powder coat and is left raw to allow nature to take its course. This frame, and some of its parts, will rust over time. Sour protects the inside of the frame with a wax coating, and they supply each frame with a bottle of Sour Frame Oil, “a perfect blend of love and linseed oil.” It comes equipped with a threaded bottom bracket with an eccentric shell for singlespeed setups, a matching Sour Bicycles Party Fork, Brainfart Industries CrMo Handlebar (including brazed on dropper post lever), Cyber Cycles Steel Crankset, and an Actofive 32T Chainring.
The Bad Granny comes in three sizes (small to large/XL), and the frames weigh in between ~6.3 pounds (2,870 grams) and ~6.9 pounds (3,110 grams), depending on your size. The matching fork weighs ~2.8 pounds (1,275 grams). As for geometry, the Bad Granny has a reasonably slack 68° head tube angle, a 74° seat tube angle, a wheelbase between 1,120mm and 1,183mm, and a 60mm bottom bracket drop.
Pre-orders open at 5:00 pm CET today and there are only 10 framesets available, so set an alarm and act fast if you want one. The Limited Edition Sour Bicycles Bad Granny costs €2,420 and is scheduled to ship around 90 days after the pre-order closes. Find additional details at Sour.Bike.
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