Hmm…

*qam Do             “foot speed”

FWIW:

qughDo               cruising speed
wabDo                 speed of sound

gho'Do                 sublight (speed)

Note that these are one word, not two. 

Also note the longer {wa’ rutlh qam Do Duj} “unicycle” – probably more of a definition, not a translations.  (Somehow I can’t imagine Klingon warriors disporting themselves on unicycles!)

Voragh

From: nIqolay Q

On Fri, Mar 26, 2021 at 6:48 AM Lieven L. Litaer <levinius@gmx.de> wrote:

In addition to the above, we talked on the phone to find some solutions.

- To talk about a motorcycle, Okrand confirmed that this counts as a
land vehicle, i.e. a {puH Duj}. Although a motorcycle looks like a bike,
you cannot say {qam Do Duj} because it definitely goes faster than {qam
Do}.

This is interesting to me. I always figured the phrase {qam Do Duj} for "bicycle" was a sort of calque on "velocipede", but here {qam Do} might be a phrase in its own right. The fastest a person can go without powered assistance, maybe?