Normally spokes decrease tension due to rider weight (radial or less often lateral) and torque transfer.
Torque transfer is either due to pedaling (rear wheels) or braking (hub braked wheels only).
Deceleration (braking) can be about double acceleration (pedaling). So in maximum braking situations, potentially there could be a greater tension decrease with hub brakes.
In 1896 (not a typo) Archibald Sharp published the formula which calculates tension change due to hub torque. See page 342 in his book: https://books.google.com/books?id=leq7A ... el&f=false
Theoretically hub braked wheels could use a little more spoke tension, but in practice most well-tensioned wheels have enough already.
So unless something else is unusual (extremely low flanges, extremely low number of spokes, etc.) then I don't recommend higher spoke tension on disc brake wheels.
Engineering Manager, Road Bikes
Cycling Sports Group, Cannondale
Ex-Kestrel, ex-Velomax, ex-Trek, ex-Cervelo
Also there are more tubless /clincher wheels - those need higher tension because of tension drop when tire is infalted
Tubulars hasnt got that effect.
More important is even spoke tension - so complete wheel is balanced
Front wheels 80-100kg and rear 100-120kg max tesnion will be ok
As long as you do a good job relieving tension during the build (so that the final tension is a "true" tension and won't drop when you start riding it), I am sure you could get away with a bit less. -- But I'm also not sure what the benefit would be to using less tension.
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