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Sears
Cycling

Model # 502457340 Official Sears 20" chopper-style bicycle

Here are the diagrams and repair parts for Official Sears 502457340 20" chopper-style bicycle, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 59 parts  |
R Wheel Assy 303013C
#24

Unit parts diagram

R wheel assy

Part #303013C

The manufacturer no longer makes this part, and there's no substitute part

F Wheel 303005C
#13

Unit parts diagram

F wheel

Part #303005C

The manufacturer no longer makes this part, and there's no substitute part

Sprocket 300424
#17C

Shimano rear hub diagram

Sprocket

Part #300424

The manufacturer no longer makes this part, and there's no substitute part

Axle Mx 303520
#15

Unit parts diagram

Axle mx

Part #303520

The manufacturer no longer makes this part, and there's no substitute part

Spk 7-9/16 303155
Spk 7-9/16

Part #303155

The manufacturer no longer makes this part, and there's no substitute part

Chain Guard 32992BEK
#21

Unit parts diagram

Chain guard

Part #32992BEK

The manufacturer no longer makes this part, and there's no substitute part

Lock Nut 300402
#20

Shimano rear hub diagram

Lock nut

Part #300402

The manufacturer no longer makes this part, and there's no substitute part

Bolt 1X79
#4

Unit parts diagram

Bolt

Part #1X79

The manufacturer no longer makes this part, and there's no substitute part

Clutch Cone 300469
#12

Shimano rear hub diagram

Clutch cone

Part #300469

The manufacturer no longer makes this part, and there's no substitute part

Brake Cone 300464
#7

Shimano rear hub diagram

Brake cone

Part #300464

The manufacturer no longer makes this part, and there's no substitute part

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Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

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Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

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Repair difficulty
Time required
 30 minutes or less

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

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Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.…

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