Are you sure about that length? It seems awful short. The 41" length Mike's offers is for stock higher bar bikes. When most of us switch to lower Euro or Superbike bars, we go with something about 32" to 36". You dropping the front 2" doesn't seem to justify another 10" to 12" shorter. But, if you're sure, Mike's offers a 24.5" line they label as a rear. That doesn't matter as long as the fittings on the ends are correct. You can use a line from any bike as long as the fittings match. Many of us use this 32" one with our low bars ......
http://www.ebay.com/itm/201465631590?_trksid=p2060778.m1438.l2649&ssPageName=STRK:MEBIDX:IT
This line is speced for an ATV but like I said, that doesn't matter. It has what we require, the proper 10mm banjo fittings on the ends. One end is also angled slightly. We need/want that for bleed nipple clearance down at the caliper end .....
That line works but what I don't like about it is the ends are not offset. They need to be about 90 degrees offset. Otherwise you have to twist it to line up.