ランウェル — アクアリア15

This is a luxury item for certain but it's the best feeling wrench there is. I got the gold version for extra bling but the shape & length of the Aqualia is perfect in either color. Plenty of leverage at 170mm. I use chain tensioners anyway so I don't need it gorilla tight. The wrench compliments the Runwell nuts nicely also.

Sometimes I change gears just so I can use this tool.

I've owned a few 15mm wrenches in my time and can confidently say this is the best one I've ever tightened a track wheel nut with. The closed design perfectly captures the nut, handle angle is perfect, length is just right and it's ever so nice feeling in your hand.

Every track cyclist needs one of these in their kit.