Tyre: 29x2.3", diameter about 739mm.
Fork 30mm A-C, 50mm offset
Headangle: 65 degrees, you end up with a crown height of 828.6mm and 117.1mm trail.
Tyre 27.5 (584mm) x 2.6", diameter about 716mm
Using the same headangle, crown height and trail as inputs...
Fork needs to have A-C about 539mm and 45mm offset.
Tyre: 29x2.3", diameter about 739mm.
Fork 30mm A-C, 50mm offset
Headangle: 65 degrees, you end up with a crown height of 828.6mm and 117.1mm trail.
Tyre 27.5 (584mm) x 2.6", diameter about 716mm
Using the same headangle, crown height and trail as inputs...
Fork needs to have A-C about 539mm and 45mm offset.
Looking at https://www.cotic.co.uk/product/solarisMAX they say it should take 29x2.5" or 27.5x3.0"...