Indexing - Gears which click from position to position, making selecting the right one easy. J Jockey Wheels - The two small wheels which guide the chain in the rear derailleur. K Knobblies - Aggressive tires for true off road use. L Lacing - The process or type of spoking pattern used on wheels. Lube - Anything from oil to heavy duty grease.
Dry lubes evaporate leaving a dry film.
Wet lubes remain wet to the touch and protect better in wet conditions. Dry lubes are good for dusty conditons because they don't pick up dirt. N Nipple - Small brass or alloy threaded adjuster that fixes the spokes to the rim. Nylock - A nut with a nylon insert which the bolt thread cuts into, designed to stop the nut from working loose. P Presta - The thin valve, used more commonly on racing bikes, and choice for some offroad riders.