Apollo Radius manual Headset Inspection, ‘Ahead Set’ Type Assemblies

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Headset Inspection

The headset is responsible for locking the fork into the frame. Every month the headset bearing adjustment should be tested. This is done by standing astride the frame top tube with both feet on the ground and firmly applying the front brake and rocking the bicycle back and forward.

If the headset is loose, it needs to be tightened to avoid potential damage to both the bicycle and the rider. However, do not over-tighten. If the fork tends to stick or bind at any point when rotated slowly sideways, the bearings are too tight.

Quill Type Assemblies

Adjustment

To adjust the headset the top locknut needs to be loosened or removed completely, as well as the lock washer and reflector bracket, if fitted. Turn the adjusting cup clockwise until finger tight. Replace the lock washer or reflector bracket and using an appropriate wrench to re-tighten the locknut.

Note: Bearing damage will occur if over-tightened.

Prior to riding always check that the headset is properly adjusted and that the headset locknut is securely fastened.

‘Ahead Set’ Type Assemblies

Lock Nut

Lock Washer

Adjusting Cup/Cone

Ball Retainer

Top Head Cup/Cone

Bottom Head Cap

Ball Retainer

Crown Cone

When assembling a new bike with this type of fitting, the dust cap covering the Allen head bolt needs to be removed and the bolt holding the top plug undone. Remove the cardboard cover. Slip the handlebar stem over the exposed fork steerer and replace the top plug. The handlebars and the forks need to be facing the front. Using the Allen head centre bolt, secure the steering assembly until there is no freeplay. Take care not to over tighten. Tighten up the binder bolts which clamp the handlebar stem to the fork steerer. Ensure the handlebar stem cannot turn in the steerer tube.

To adjust the headset after the bicycle is assembled:

-Loosen the stem binder bolts.

-Use the Allen bolt to re-adjust the compression mechanism.

-Re-fasten the stem binder bolt firmly.

Unlike standard headsets, the 'Ahead Set' has an unthreaded, full-thickness bicycle fork steering tube. Adjustments are made using an Allen headed compression bolt, and then are fastened by clamping the handlebar stem directly onto the fork steerer.

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RAOM0507

Apollo Bicycle Company Pty. Ltd. ABN: 60 001 914 469

Updated 23/05/07

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Contents Page Page Congratulations Warranty Inside Front Cover Comprehensive MaintenanceBefore You Ride Pages 8 Contact Addresses Back CoverSchedule Service Checklist Correct Frame SizeRiding Position Schedule LubricationIdentifacation Gear Control Cable Chainwheel Crash Pad Handlebar Stem Handlebar Grip Brake Control Cable Part 3 Before YOU Ride Frame SizeApprox Wheel Suggested Riding Position Saddle HeightUpdated 23/05/07 RAOM0507 Safety Checklist Updated 23/05/07 RAOM0507 Helmets Riding Safely Try to avoid where possible Charge batteries if battery powered lightsAre to be used. Check wiring connections For dynamo powered lightsUpdated 23/05/07 RAOM0507 Gears HOW to Operate Derailleur Gears Derailleur gears are the most common typeTo the rider Hand Grip Shifters Below Bar Shifters Dual Control ShiftersRecommended Chainwheel/Rear Sprocket Gear Combinations Left Rapid Fire Shifters Part 4 Bicycle Care & Servicing Bicycle CareHigh Security using a U Lock Frequency Component Lubricate How to Lubricate Schedule 2 Service Checklist Frequency Task ReferenceComponent Torque Part 5 Comprehensive Maintenance Wheels and TyresBMX MTB Updated 23/05/07 RAOM0507 RAOM0507 Correct Quick Release Axle Setting To properly re-adjust the bearing cones Hub LubricationTake the wheel out of the frame Hub to expose the ball bearingsHow To Repair a Flat Tyre Schraeder is a registered Trademark Steering System Rear wheel hub Single Allen key or hexagonal bolt ForkBicycle Suspension Headset Inspection ‘Ahead Set’ Type AssembliesUpdated 23/05/07 RAOM0507 Rotor Headset Inspection Saddle and Seat PostFrame RAOM0507 Brakes Foot Controlled BrakesAdjustment Sidepull Callipers Lubrication calliper brakes39mm or more 5mm Allen Key Updated 23/05/07 RAOM0507 Brake Shoe Replacement Drivetrain Correct Pedal AttachmentBicycle and falling Lubrication and Adjustment This system requires more detailed servicing Crank armsOne Piece Crank Assembly Use a coin or a screwdriver to remove the dust cap Screw in the removal tool Turn the screwbolt clockwise Front Chainwheel Rear Sprocket Pull Up Straightedge 12mm Updated 23/05/07 RAOM0507 RAOM0507 Derailleur Systems Or whenever new cables are fitted Adjustment Rear Derailleur To adjust low gear Chainring and the largest rear sprocket Turn the adjusting screw marked ‘L’ untilLoosen off the control cable fixing bolt Reflectors To increase visibilityAccessories Child Safety Carrier GlovesClean blocks and rim Slipping chainBrake blocks worn Replace brake blocks They squeal/squeak Replace bottom bracket orRe-true if possible, or replace Part 6 PURCHASE DETAILS