Dragon Ranger is a manga series by Syunnpei Nakata about a sentai/Power Rangers-esque group of heroes. However, this isn't your typical action manga. It's bara (muscular yaoi) where a battle between a hero and a villain could easily result in some sex. It's a ton of fun to read and the art is great.
The scans below are courtesy of Croup, who has been posting English scanlations of the unlicensed manga on his blog Soupgoblin's Stash (link not worksafe). These pics are just the tame ones I can post here.
