Officially launched in 1988, Sram is a relatively young company with a lot of design ingenuity and the original maker of the Grip Shift. They’ve been making their way up through the bike component industry, proving themselves to be a reliable company providing a reliable product.
And they look good too.
They have also forged biking alliances with several companies, including RockShox, Quarq, Avid, Truvativ and Zipp.
So let’s start from the bottom up.
This is Sram’s entry level components group. Here you will find a series of parts which consist of brake levers, shifters, cassettes, chains, crankarms and derailleurs for road, cyclocross and track bikes. The series comes in 8, 9 and 10 speeds and even offer cantilever brakes from Avid.
First things first: a freewheel is not a cassette. There are several differences between the two. In a cassette, the ratcheting mechanism is part of the hub and is integrated, not screwed on. A freewheel is threaded onto the hub. A way to tell is to look for a flat lockring on top of the smallest cog. If it has splines or grooves, it is a cassette and not a freewheel.
Cassettes are used more typically nowadays, whereas freewheels can be found on older bikes.
You also have to remember that most companies make their freehubs non-compatible with cassettes from other companies. So if you have a Shimano cassette and need to replace a cog, a Campagnolo will never work because they are splined differently.
Changing gears on a bike is the heart of what may make or break your biking experience. Even though a mountain bike is featured in this tutorial, the information can easily be applied to road and triathlon bikes.
What you need to remember is that the rear derailleur is controlled by your right hand and the front derailleur is controlled by your left hand. What normally tends to happen (unless you are constantly in changing terrain) is that you adjust the freewheel (left hand) setting first and then play with the combinations on the back.
This is an early episode where Jim goes through parts of the bicycle. Jim starts with the front wheel, rim, tire, tube, spokes and hub, then moves on to the fork and brake and brake calipers.
Next he checks out the handlebars, brake levers, and bar tape. On to the stem, and headset which transitions into the frame, which consists of the headtube, top tube, down tube, seat tube, chain stay and seat stay.
Which brings us to the seatpost and saddle. Moving on to the drivetrain made up of the crank, chain, cassette, rear derailleur and front derailleur. What allows the crank to turn is the bottom bracket and that's pretty much what we're working with. See you on the road, bitches!
Joe's much less suave, and much more annoying rendition of "Part's of a Bicycle":
Tutorial on how to remove a freewheel from a bicycle wheel.
First remove the skewer from the wheel. Then identify the correct tool to remove the freewheel. Once you have the correct freewheel tool, place it over the axle and slide it into place on the freewheel. Then take the skewer you just removed and place it back onto the hub, tightening it down until there is a little pressure on the freewheel tool to hold it into place on the freewheel body.
Next grab a big wrench and place it on the tool and turn the freewheel tool counterclockwise.
A man and his rag: In this video we give you a quick overview of how keep your bike in superb running condition by keeping your drivetrain (i.e. cassette, chain, chain rings, dearailleur) clean. with a Rag Edition.
First thing, if you don't have a handy dandy chain cleaner, like the one in the video. Most people probably don't, but they do a great job of cleaning the bike chain.