Correct QR length

I want to order QRs for my hubs A291SB/F482SB. Can you advise me on correct length?

The indicated hubs are road models with O.L.D. (spacing) 100mm front and 135mm rear.

It means you need 112mm QR for front hub and 144mm QR for rear hub.

BTW, front QR length for Road and MTB hubs is the same 112mm.
But for rear MTB hubs with 135mm spacing it is 148.5mm QR.

 

QR249_pair.jpg