Roadmaster
Cycling

Model # 3570SR Official Roadmaster bicycle

Here are the diagrams and repair parts for Official Roadmaster 3570SR bicycle, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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ALL PARTS
Showing 10 of 53 parts  |

Pedal Lu-4 KK2849
#14

Unit parts diagram

Pedal lu-4

Part #KK2849

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

Bracket HH5112
#26

Unit parts diagram

Bracket

Part #HH5112

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

Grip,1pair JJ0170
#6

Unit parts diagram

Grip,1pair

Part #JJ0170

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

Bracket HH5110
#31

Unit parts diagram

Bracket

Part #HH5110

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

Flange Nut PP6176XXX
#21

Unit parts diagram

Flange nut

Part #PP6176XXX

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

Derailleur PP7434
#27

Unit parts diagram

Derailleur

Part #PP7434

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

24 X 1 3/8 Front Tire (size Only) N/P
#22

Unit parts diagram

24 x 1 3/8 front tire (size only)

Part #N/P

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

Stationary HH2411
#40

Unit parts diagram

Stationary

Part #HH2411

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

Rr Shifter PP6608
#30

Unit parts diagram

Rr shifter

Part #PP6608

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

Guide MM4005
#50

Unit parts diagram

Guide

Part #MM4005

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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

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

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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

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.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho…