The OM-Duro: The World’s First 27.5+ BMX Mountain Bike! by Cory Benson

January 12, 2017
Posted by: Manager

It kinda looks like a regular BMX cruiser at first glance, ’til you realize those aren’t 24″ wheels, but in fact are scaled up to 27.5+. The OM-Duro is the latest in SE Bikes’ retro line-up, aiming to bring the fun of railing a BMX bike to the big mountain by way of big plush 3″ tires. Developed as a sort of celebration of 40 years of SE, it takes cues from their classic OM Flyer cruiser but throws in a set of disc brakes and a 1x drivetrain on top of fat tires to build out an affordable, fun enduro trail hardtail. Get a closer look at the bike, plus video of its designer tossing it into the air across the gap…

It’s always fun to see video of a new bike getting put through the paces, but it isn’t often we see them being worked over by their 45 year old designer (sorry for ratting you out Todd). But that’s what SE brand manager Todd Lyons who designed the bike from the ground up does, thrashing, manualing, and sliding the new OM-Duro around the bike parks & trails at Mammoth, Big Bear, in town & on the beach. Clearly this is a man who enjoys his work.

The resulting 4130 OM-Duro is a classic looptail cruiser frame with a gussetted headtube, plus the new addition of a replaceable derailleur hanger, a disc brake tab, and a standard 73mm threaded bottom bracket. Of course not to mention clearance for the 27.5 x 3″ Vee T-Fatty tires. It even gets stealth internal dropper routing if you want to add on a 30.9 slider for more trail-readiness.

The bike gets built up with a  SRAM GX 1×10 drivetrain and mechanical Tektro disc brakes on bolt-on axles (110mm front & 160mm rear hub spacing), which all helps keep the cost down to just $850. The clutched drivetrain delivers a solid trail riding range with a machined narrow-wide 32T chainring on the Cr-Mo cranks and an 11-36 cassette.

For a classic look and BMX feel the sparkly blue bike gets SE Racing decals, a Big Honkin’ 6″ riser bar, toptube & stem pads.

The OM-Duro comes in two frame sizes that are said to suit riders from 5’3″(160cm) and up, but a bike built like this doesn’t come light. The bike tips the scales (over?) at 38.6lb (17.5kg), but with hefty steel frame, fork, bars & cranks, plus 32 spoke wheels, it’s clearly built to get tossed off a mountain for a good time.