Next to them are the 2.1" Nevegals. Pictures don't quite capture how much bigger they are, although it's obvious they are a lot taller, but how much?
The 2.1" measured 54mm tread/50mm casing, 670mm tall; the 2.7" measured 66mm tread/ 58mm casing, 690mm tall.
Operation Snow Bike. The design is going to look like a SE QuadAngle. Now how to get the clearance?