Derale 13263 Dual Pass Aluminum Heat Sink Cooler<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Aluminum heat sink design produces high heat transfer</li><li>External and internal heat dissipating fins</li><li>Compact 3 inch diameter to fit most frame rails</li><li>Dual pass cooler design</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41kpf7hz%2BOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ItiVwA3kL.jpg" noproxy>