MTB Dictionary

A AM - All Mountain - A bit of everything mountain biking, sort of “jack of all trades but master of none”.
B Bail - To jump off, or lay the bike down while riding to avoid a worse crash or impact.
Berm - A raised shoulder on the outside edge of a corner or turn, shaped like a bowl, allowing a rider to lean into a corner with much more speed and traction.
BMX - Bicycle Motocross - a smaller sized bike designed for track racing over jumps and turns.
Bunny Hop - To hop into the air or over an obstacle while on your bike.
Biff -  a crash.
Bonk - to run out of energy or grow exhausted on a ride, normally due to not eating or drinking enough
C Cadence - The rate at which the pedals and crank arms are spun around while riding.
Chainring - The front sprocket set.
Cleats - pedals that you clip cycling shoes into so they are ‘fixed’ to the cranks and provide more efficient pedalling on inclines
Crank - The arms that the pedals are attached to.
Chainsuck - condition when the bike chain gets jammed between the frame and the chain rings, or when the chainring is so worn that it holds onto the chain and lifts it up to meet the incoming part of the chain.
D Derailleur - The components that are moved when you shift gears, they force the chain onto the next sized sprocket, most bikes come with front and rear derailleurs
DH - Downhill - A steep decent from start to finish consisting of switchbacks, drop-off, jumps, sand and other obstacles.
DJ - Dirt Jump - A style of riding that mostly consists of large jumps made of dirt.
Drop off - A drop from an elevated position measuring anything between pavement height to 2+ meters, handled best with a bit of speed and momentum.
Dual Suspension - A mountain bike with front and rear suspension systems.
Dab - to put a foot down in order to catch your balance on a difficult section of trail. “I made it without crashing, but I had to dab once.”
E Endo- The maneuver of flying unexpectedly over the handlebars, thus being forcibly ejected from the bike. Short for “end over end”.
F Flats - Flat type pedals mostly used for downhill, BMX and dirt jumping.
Four Cross - 4X - A track consisting of jumps and corners similar to BMX but for mountain bikes.
Face plant -hitting the ground face first.
G Granny gear - The easiest gear on your bike (usually 1-1) that a granny would use to climb up a slope. Smallest front sprocket and largest rear sprocket.
Gnarly - Terrain that is difficult, dangerous or very challenging
H Hardtail - A mountain bike with no rear suspension, only front
I Involuntary dismount - A crash
J Jump - To leave the ground on your bike usualy using an obsticle made for this purpose.
L Lock Out - to lock your suspension from movement, which generally helps pedaling efficiency.
LBS- Acronym for Local Bike Shop
Line -  The desirable path or strategy to take on a tricky trail section.
M Manual - to lift your front wheel up while coasting and without using pedals for power.
MTB - Mountain Biking - To ride on dirt roads, tracks, paths and anywhere you are able to that is not on normal road surfaces.
N  North Shore - riding over wooden bridges usually high off the ground.  Made famous on the North Shore of Canada
O Over The Bars (OTB) - To fly over the handlebars.
P Pump - To pump on a track or trail is to push your bike down a short decline even as small as a speed bump to get free speed or momentum. Imagine pushing someone you hate down the hill in a shopping trolley, now do it with your handlebars.
Poser -  Derogatory term for people with R70 000 bikes that never see any real action. Usually found near a trail and never dirty.
Q Quick Release - Something that holds the wheel on either the frame or fork usualy used on XC bikes.
R Rock garden - A section of track that has several head size or larger rocks or boulders.
S Shifters - The levers or mechanism you use to move the derailleurs to change gears.
Single-track - part of a mountain biking trail or route that only allows bikes to ride in single file, passing is either difficult or impossible. This is the most fun type of MTB trail.
Skinny - A narrow obstacle, bridge or beam.
Softtail - A mountain bike with rear suspension.
Sprocket - The toothed disks that drives the chain.
Stage race – A multi day mountain bike event that consists of point-to-point races on each day.
Switchback - a sharp u-turn usually found with steep slopes that zig zag you up or down the mountain.
Snake bite - Double puncture of an inner tube, caused by hitting an obstacle too hard or by under-inflation of tires.
T Table top - A jump that has a flat top. The trick is to fly off the face of one side and land on the downslope of the othere.
Trail Riding - A style of riding that is not strictly defined.  Normally a trail rider is someone who just rides varied terrain.  A trail bike therefore is a bike that can ride any terrain.
Technical - A section of trail that is difficult to ride because of rocks, tree roots, steep drops.
Titanium - What they use to make bike parts lighter or what they put in your body to mend your bones after an ENDO
U Urban - A style that uses pavements, benches, railings, walls and any urban street objects as obstacles.
V
W Whip - to flick your bike up and sideways so it is almost parallel to the ground during a jump.
Wash out - To have the front tire lose traction, especially while going around a  corner.
Weight-weenie - A MTB owner (not even necessarily a rider) who is more concerned with how many milligrams a certain component saves off the bike’s total weight than with how to be a better rider.
Wheelie -Lifting the front wheel off the ground for an extended period, usually with some combination of pulling on the handlebars, pedaling harder, and balance.
X XC - Cross country – Usually long distance trails with strenuous single-track climb climb climb climb climb climb climb climb climb climb.
Y
Z The Zone - A state of mind experienced while riding. You don’t think, you just do. A truly mystical experience that can’t be fully explained, but when you get there you’ll know it and strive to reach it again.