If the Solo Logic Mv uses the larger battery (not the mini Cub battery) then you can use my solution if you mount the lamp head on the bars:
- Put the lamp onto the bar holster/fixture
- Put the battery on the top tube, right behind the head tube
-- Use the battery retention strap to hold the looped up excess cord.
No cable clips or zip ties needed.
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"I feel like my world was classier before I found cyclocross."
- Mandi M.