Stationary bike classes and home stationary bikes have gained a lot of popularity in fitness. Cycling outdoors may be fun, but it is dependent on nice weather, safe places to ride and the desire to fight with motorists for the rights to use the road. Stationary bikes can mimic riding outdoors but without all of the hassles. You do need one thing, though--a working bike. If your crank goes out and needs to be replaced, you can change it fairly easily. Check to see if your bike is under warranty before buying a new part.
Step 1
Take off the outer chain guard located on the front right or left side of the bike, depending on your model. Use a Phillips screwdriver to unscrew the screws that are holding the outer guard on. Lift off the outer guard so you can get to the bike chain.
Step 2
Take the chain off the track. Use a wrench to remove the axle nuts on both sides of the flywheel, and remove any adjustment screws or bolts holding the chain in place. Pull the chain off of the crank.
Step 3
Use an adjustable wrench to remove both the right and left pedals from the crank arms. Twist the right pedal off with a wrench by turning the spindle counterclockwise from the right crank arm. Twist the left pedal off of the left crank arm by turning the spindle clockwise to remove.
Step 4
Take the crank nuts and rings off of both sides of the crank with a wrench. You should now be able to pull or slide the crank out. Do not try to detach the crank arms from the crank, as they are all part of the same piece.
Step 5
Place the new crank with arms into place. Replace the crank nuts and tighten with your wrench. Identify which pedal is the right and which is the left by looking for an "R" and an "L." Twist the right pedal's spindle clockwise to attach the right pedal back onto the right crank arm. Replace the left pedal onto the left crank arm by turning the spindle counterclockwise.
Step 6
Put the chain back onto the crank and tighten the bolts or nuts. Place the outer guard back over the chain and use your screwdriver to put the screws back in place.
Tips and Warnings
- Be sure that all parts are tightened securely into place so that your bike is safe to use, but do not overtighten anything. Consult your manual or call the manufacturer if you need to know the torque specs.
Things You'll Need
- Crank
- Adjustable wrench
- Phillips screwdriver
References
- "Pro-Form 490 SPX User's Manual;" ICON IP, Inc.; 2009
Member Comments