You don't need to take the front wheel off if you use the lasso method with the cable. Get a nice thick cable too.

Place the end of the cable thru the other end while wrapping it around the front wheel. Run it thru the bike and thru the rear wheel. Then place the U lock thru the frame and place the end of the cable into the u lock.

Many people never heard of it, lousy artist but you get the idea.