29er front and 27.5 rear what would happen?

[Ryanpmb]

The same if you wore crocs, people will point and laugh

Fixed.

[Ryanpmb]

nothing, except for a stoopid looking bike and you'll have to carry two varieties of spare tubes

Wouldn't look that stupid - A properly built 69r (26 rear 29 front) looks fine. 27.5" tube will work on a 29r wheel as a get me home fix so no stress there either - besides, run tubeless???

[Meentb]

Your back wheel would turn faster than the front wheel. Ultimately wearing out the tire and bearings sooner than expected. ????

[2bliss]

RE the Silverback Signo Tecnica: I've never ridden one, so my opinion is subjective and not based on experience. It might be great, dunno. It just looks weird to have two different size wheels. Also, I don't get it. They put a bigger wheel, which rolls more smoothly over obstacles, in the front where there is already a suspension fork to soften the ride. At the back, under your posterior, is no suspension and a smaller wheel. Also, won't it be rather difficult to keep the front wheel down during steep climbs?

 

Reversing the setup would probably make for very scary descents and many endos!