Originally Posted by
neonorchid
Which flex did you end up going with?
FWIW and if you have yet to see the boots for yourself, Shift Alpha Boa 120 does not have a riveted cuff but the cuff buckles and Velcro powerstrap are riveted on.
As to flex, I do not know if the Shift Alpha Boa 130 has the same exact shell as the 120 with the flex difference coming from the liners. I tend to think not because there is little difference between the two liners to account for it. Also last season the two different liner variations where both available in the S/Pro Alpha 120, with the Alpha 120 EL having the Velcro tongue & semi-detached shin plastic version liner of the S/Pro Alpha 130 and the S/Pro Alpha 120 with the 130 style liner was still dubbed 120 flex. I personally don't like that the 130 liner Velcro attached tongue to enable fore/aft positioning, it feels weird. To my foot the standard 120 liner without the Velcro feature feels better. I also don't care for the 130 tongue shin plastic front disconnect from the shin padding to enable adding material for customizing the fit. I have no need for either feature having been sized for a 1 finger shell fit.
I would guess either areas of the 130 shell are beefed up to account for the flex difference, or same exact mold but harder plastic
I like the Shift Alpha Boa 130 ratcheting Z hook strap, it is useful for touring. Also like the purple color better than the 120 dark aqua-green but do not want to find myself "overbooted" in too high a flex. Will say the 120 takes no effort to flex nose to knees to toes (indoors) while at the same time I don't over flex going further past my toes. I have not tried the 130, only the 120, but am thinking it may not be a bad idea to order a 130, compare flex and feel...