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RA# n. Return Authorization number. A number a vendor gives you to return the "defective" part you broke while JRA.

R&D n. Ripoff & Duplication, or Research & Development.

rag dolly v. to wreck in such a way that one's person is tossed like a flimsy scrap of cloth. "Did you see me rag dolly back there? I think I pierced my ear on a tree branch."

redsocks n. hikers who always block the best singletracks, so named because they're always wearing those funny red socks. Also known as HOHAs.

retro-grouch n. a rider who prefers an old bike with old components and isn't fond of new, high-tech equipment.

'rhoid buffing v. going down a hill so steep that your butt touches the rear wheel.

Ride On! n. a parting phrase used by riders with out much else to say.

rigid n. a bike with no suspension.

roadie n. a rider who prefers riding on paved surfaces. Often derogatory.

road rash n. contact dermatitis; an allergic reaction of skin to moving asphalt.

rock-ectomy v. removing rocks, dirt, gravel from one's person after a yard sale. "Some betty stopped by and performed a rock-ectomy on my knee after the wreck, I think she digs my scene."

rocket fuel n. the mandatory pre-ride coffee.

rockwell v. an unintentionally performed hardness test rendered by a trail side object on your anatomy or possesions. Requires the use of a number to rate the event. "I 50 Rockwelled on that last buster." "No way, dude, it was at least a 60!"

rookie mark n. chain grease on a rider's pant leg. "Give that guy extra points for his rookie mark. It's even on the wrong leg!" See chainring tattoo.

roost v. to go fast or accelerate quickly. Or, to stop suddenly.

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