1. Manuals
  2. Brands
  3. Diamondback Manuals
  4. Bicycle
  5. SHEPPARD CYCLES
  6. Owner's manual

Diamondback SHEPPARD CYCLES Owner's Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SHEPPARD CYCLES and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Diamondback SHEPPARD CYCLES

Summary of Contents for Diamondback SHEPPARD CYCLES

  • Page 3 . you have any doubts or concerns as to your experience or ability to properly repair or maintain your bicycle; . the following manual does not cover a particular matter; or . you have any other questions or concerns. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 4 PA R T 7 PA R T 6 Wa r n i n g / Important (Take notice of this symbol Contact Addresses Warranty throughout this manual) Back Cover Inside Back Cover SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 5: Table Of Contents

    . front wheel removal & replacement 39 . accessories & safety 6 . WARRANTY Back Cover . rear wheel removal & replacement Helmets 7 . CONTACT ADDRESSES Back . correct QR axle setting Reflectors SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 6: Racing Bicycles

    Chainwheel and are designed for fast Chainstay Front Hub Tyre travel over long distances on Freewheel Spoke Protector Disc Chain Spokes paved surfaces. Rear Derailleur Tyre Valve Rear Dropout SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 7: Mountain Bicycles & Crossbikes

    Down Tube Wheel Reflector Front Derailleur Rear Gear Control Cable Pedal Crank Arm Bottom Bracket Axle Chainwheel Wheel Reflector Gear Control Cable Tyre Chainstay Front Hub Freewheel Rear Derailleur Chain Tyre Valve Spokes SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 8: Suspension Bicycles

    Lower Fork (Suspension) Rear Frame Sub Assembly Tyre Valve Pedal Crank Arm Bottom Bracket Axle Chainwheel Chainstay Wheel Reflector Drive Chain Tyre Gear Control Cable Rear Derailleur Front Hub Axle Freewheel Spokes SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 9: Bmx/Loop Frame/U-Frame Bicycles

    Crash Pad Brake Pad Rear Reflector Front Fork Wheel Reflector Wheel Reflector Seat Tube Down Tube Crank Arm Pedal Chain Chainstay Chainwheel Tyre Front Hub Rear Sprocket Spokes Tyre Valve Training Wheel SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 10 Allen key - 5mm and 6mm. Standard slipjoint pliers It is recommended that a torque wrench be used in the initial assembly process and that the torque requirements listed on Page 36 be adhered to. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 11: Assembly

    End plugs must be fitted and the clamp bolts must be firmly tightened. The handlebar stem must be inserted so that the minimum insertion mark cannot be seen. SHEPPARD CYCLES ABN 60 082 376 289 SC/2012...
  • Page 12 ‘L’ for left. Tighten pedals very firmly using a narrow 15mm open ended spanner. Note, damage will occur if pedals are not correctly and firmly attached. Attachment of an incorrect pedal into a crank arm will cause irreparable damage. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 13 To connect and adjust “V” style or “Linear Pull” type brakes, use a 10mm spanner or Allen key to set the brake shoes to within 2mm of, and parallel to, the rim with the brake arms in a vertical position. Position the drum shaped end button of the control SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 14 Correct maintenance of your bicycle will ensure many years of happy and safe riding. Service your bicycle regularly yourself, by referring to the relevant sections of this manual, OR take it to your specialist bicycle shop. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 15: Single Speed Bicycles

    (Please refer to “Steering Systems” pages 45-51 for more details.) The handlebar must be inserted so that the minimum insertion mark cannot be seen. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 16 This tab will ensure that the wheel will not fall out should the nuts become loose. The mudguard stays are to be attached under the wheel axle nuts. Tighten the wheel nuts using the appropriate 14mm or 15mm spanner. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 17: Training Wheels

    For more details refer to Brakes section under Detailed Maintenance further on in the manual. Do not ride the bicycle until the brakes are functioning properly. Test the brakes by squeezing the brake control lever firmly and trying to push the bicycle forward. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 18 Service your bicycle regularly yourself by referring to the relevant sections of this manual OR take it to your specialist bicycle shop. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 19: Correct Frame Size

    12 plus 37cm(14.5”) 66-76cm 12 plus 43cm(17”) 71-79cm 12 plus 50cm(19.5”) 45cm(18”) 76-84cm 12 plus 55cm(21.5”) 50cm(19.5”) 79-86cm 12 plus 57cm(22.5”) 52cm(20.5”) 81-89cm 12 plus 60cm(23.5”) 53cm(21”)-56cm(22”) 86-94cm 12 plus 63cm(25”) 58cm(23”)-60cm(23.5”) SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 20: Riding Position

    Pedal at bottom To adjust this distance, the position of the seat can be altered in relation position to the seat pillar. (Refer to Part 5 on how to adjust the seat clamp). SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 21: Handlebar Height

    If your bicycle is fitted with a suspension type handlebar stem, the same caution and warning should be noted. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 22: Safety Checklist

    . ensure clamp underneath saddle is firmly tightened to the saddle post . ensure frame clamping mechanism is securely fastened . saddle pillar must be inserted so that the minimum mark cannot be seen SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 23: Steering

    . check that there is no excessive wear or side play in rear suspension components . check that components function smoothly without binding . where suspension components are supplied with a separate manual, refer to this for more specific safety checks SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 24: Accessories & Safety

    In most Australian states the wearing of helmets is compulsory with enforceable penalties. All fitting adjustments should be carried out prior to starting your ride and any re-adjustments should be made while stationary. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 25: Reflectors

    Finally, adjust the reflector such that it is in an upright position. See diagram at the right. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 26 Tighten bolts until snug, making sure the reflector is in an upright position. See diagram at the right. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 27: Riding Safely

    . Maintain a comfortable stopping distance from all other riders, vehicles and objects. Safe braking distances and forces are subject to the prevailing weather conditions. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 28: Wet Weather Riding

    . When pedalling, ensure your knees are parallel to the bicycle frame. . To absorb shock, keep your elbows slightly bent. . Learn to operate the gears properly (Refer to Pages 28-31 in this part of the manual). SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 29: Hill Technique

    Never take your hands off the handlebars, or your feet off the pedals when riding downhill. Children should be made aware of all possible riding hazards and correct riding behaviour before they take to the streets - don’t leave it up to trial and error. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 30: Gears . How To Operate

    To avoid rapid chain wear it is recommended that you avoid using the extreme combinations of gear positions shown in the diagrams. Refer p.31 SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 31: Thumb Shifters (Top Mounted)

    To select a higher gear, pull the left lever back to engage a larger chain wheel, and push the right lever forward to engage a smaller rear Left hand lever back Left hand lever forward sprocket. Right hand lever forward Right hand lever back SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 32: Below The Bar Shifters

    To engage a larger front chainwheel, twist the left shifter towards you. Single shifts can be achieved by twisting one click at a time and multiple shifts by larger twists. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 33: Dual Control Shifters

    WARNING: Never shift a mal- adjusted derailleur onto the largest or the smallest sprocket. The chain could jam, causing you to lose High Middle High control and fall. Recommended Chainwheel/Rear Sprocket Gear Combinations SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 34: Bicycle Care

    Don’t store near electric motors as ozone emissions may effect the rubber and paint. Don’t cover with plastic as “sweating” will result, which may cause rusting. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 35: Security

    3 . Invest in a high quality bicycle lock that will resist hack saws and Rear wheel bolt cutters. Always lock your bicycle to an immovable object, such as a lamp post, if it is left unattended. High Security using a U-Lock SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 36: Schedule 1 . Lubrication

    Ask your dealer for advice. We recommend that significant mechanical repairs be carried out by a skilled bicycle mechanic. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 37: Schedule 2 . Service Checklist

    Scratches, cracks and discolouration are signs of a stress-caused fatigue and indicate that a part is at the end of its useful life and needs to be replaced. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 38: Torque Requirements

    6 . Standard Phillips head screwdriver 7 . Standard slip joint pliers 8 . Crank remover 9 . Torque wrench with Newton Meter gradations 10 . Tyre pump 11 . Tube repair kit 12 . Tyre levers SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 39: Wheels And Tyres

    . Quick release (QR): Check that these are set to the closed position and are properly tensioned before each ride. Caution: Maintain the closed position and the correct adjustment. Failure to do so may result in serious injury. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 40: Tyre Inspection

    CAUTION: Pencil type automotive tyre gauges and service station air hose pressure settings are generally inaccurate and should not be depended on for consistent, accurate pressure. Instead, use a good quality dial gauge. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 41: Front Wheel Removal & Replacement

    WARNING: Secondary retention devices are not a substitute for correct quick release adjustment. Failure to properly adjust the quick release mechanism can cause the wheel to wobble or disengage, which could cause you to lose control and fall, resulting in serious injury or death. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 42: Rear Wheel Removal & Replacement

    7 . Reset the brake quick-release and check the brake pad clearance. Adjust the brake cable / pad clearance if necessary.- Failure to properly refit a rear wheel may result in a serious accident. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 43: Correct Qr Axle Setting

    Front Quick Release Lever clamping parts actually begin to cut into the bicycle frame/fork surfaces. (Closed Position) 6 . Note that the same procedure applies when operating a QR seat post binder mechanism. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 44: Hub Bearing Adjustment

    8 . Pack grease into each clean or new ball retainer and into the inner cups of the hub, and refit. 9 . Re-assemble the hub axle in reverse sequence to disassembling, ensuring the bearing cones are carefully re-adjusted. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 45: How To Fix A Flat Tyre

    14 . Fit the rest of the tyre, rolling the last, most difficult, part on using your thumbs. Note: Avoid using tyre levers as these can easily puncture the tube or damage the tyre. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 46: Tyre Valves

    To deflate, open the valve stem locknut and depress the valve stem. TM - Schraeder is a registered Trademark of the Schraeder Corporation Inc. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 47: Steering System

    Expander Bolt Wedge If your bicycle is fitted with a suspension type handlebar stem, BMX Handlebar Assembly then be sure to check that this is intact and functioning correctly. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 48: Handlebars / Forks

    Replacement forks must have the same rake and the same tube inner diameter as those originally fitted to the bicycle. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 49: Bicycle Suspension

    You could lose control and fall if your skill is not up to handling this system. Get to know how to handle your suspension system safely before trying any downhill or very fast riding. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 50: Headset

    The handlebar and stem must not be able to turn on the steerer tube. If adjustment is later required: loosen the stem binder bolts, re-seat the compression mechanism via the Allen bolt, then securely re-tighten the stem binder bolts. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 51 9 . Adjust the upper cup by hand until no movement can be felt in the forks. 10 . Replace the lock washer, reflector bracket and lock nut, tightening securely, then replace and securely tighten the handlebar assembly. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 52: Rotors

    1mm away from the lower cable adjusting barrels. CAUTION: Don’t screw the cable adjuster on the upper cable splitter out more than 8mm. Use the cable adjuster on the rear brake lever if more adjustment is needed. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 53: Saddle And Seat Post

    Never ride a bicycle with the seat post raised beyond the minimum insertion/max. height mark. This may cause damage to either the seat post, the frame or possibly the rider. The minimum insertion mark on the seat tube must always remain in the frame. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 54 3. Before you ride the bike, first check that the seat post is securely clamped. CAUTION: If your bicycle is fitted with a suspension type seat post then be sure to check this is intact and functioning correctly. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 55: Brakes

    The brake pads must be properly centred for maximum contact with the Cantilever Brakes rim. Replace the brake pads if they are over worn so that the grooves or pattern cannot be seen. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 56: Sidepull Calipers

    Some brakes have a special mechanism which Brake Cable Adjuster enables you to set the clearance on either side of the rim using a Locknut screwdriver. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 57: Cantilever Calipers

    5mm Allen Key 10mm Spanner correct distance from the rim, then re-tighten and test. After Adjustment, securely tighten brake shoe holding nut or bolt SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 58 If reflector brackets are not Brake Shoe Holding Nut Rotation fitted in this position, then alternative emergency cable safety stops must Allen Key still be fitted. Refer diagram P. 53. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 59: Linear Pull

    B washers (i.e. 6mm and 3mm) so that dimension A is kept then secure the brake body to the frame with the link fixing bolt. at 39mm or more. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 60 If further adjustment is required, loosen and then re-tighten cable fixing bolt as per 4. Fine tuning can be achieved via the adjusting screw at the brake lever. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 61 When spring tension is tightened, turn the arm fixing nut to A and A’ in fig 1. When loosening, turn to B and B’. (use 13mm wrench) Fig. 1 Fig. 3 SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 62: U-Brake

    Brake performance will change over the wear in period. Fork Drop with Quick spring Release Clean the brake disc before first ride using methylated spirit. Never clean inside Lever using oil or other lubricants. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 63: Drivetrain

    - Ensure front and rear pedal reflectors are clean and securely fitted. - Ensure toe clips, if fitted, are securely tightened to the pedals. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 64 9/16”(14mm) thread. Note: Never try and force a pedal with the wrong thread size into a bicycle crank. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 65 Practice engaging and disengaging clipless pedals in a place where there are no obstacles, hazards or traffic. WARNING: Once this technique is mastered, it is safe to ride your bike. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 66: Crank Set

    Standard Bottom Bracket Assembly (Cotterless) Never ride your bike if the cotterless cranks are loose. This may be dangerous and will damage the crank arms beyond repair. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 67: One Piece Cranks

    Clean and inspect all bearing surfaces and ball retainers, and replace any damaged parts. Pack the ball bearing retainers with grease, then re-assemble in the reverse of the above procedure. Locknut Bearing Cup Fixed Cone Lockwasher Adjusting Cone Ball Retainer Bearing Cup Ball Retainer Crank Chainwheel One Piece Crank Assembly SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 68: Cotterless Cranks

    3 . Screw the removing tool into the crank and tighten. 4 . Turn the screw bolt down until the crank comes away from the axle. Remove dust cap. Loosen and remove flange SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 69 1 . Remove dust cap. 2 . Tap the crank arm lightly with a mallet. 3 . Re-tighten the flange nuts, and refit the dust caps. Tighten the flange nut. Replace the dust cap. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 70: Chain

    U-shaped snap-on plate. Make sure the open end of the U-shaped plate is trailing as the link approaches the chainwheel when pedalling forward. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 71: Freewheel

    Disassembly of the free wheel is a complicated procedure requiring special tools, and should be left to a specialist dealer. Apply oil to the freewheel whenever you lubricate the chain, taking care to wipe off any excess. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 72: Coaster Hub

    Keep the coaster hub sprocket clean and oil it along with the chain. Make sure the brake arm is correctly attached to the chainstay with the brake arm clip. The brake will not operate otherwise. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 73: Derailleur Systems

    Check them for any sign of rust, fraying, kinks, broken strands, and any damage to the cable housing. If you find any problems, the cables may need replacing before you next ride. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 74: Rear Derailleur

    To adjust high gear, turn the adjustment screw marked ‘H’ until the top guide pulley lines up with the outside edge of the outermost sprocket. If the position of the guide pulley is set beyond the outside edge of the SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 75 After a period of use, the derailleur cable will stretch and you may find difficulty shifting the chain to the large freewheel cog or the large chainwheel. If this occurs, re-adjust the cable either with the barrel adjuster or by repeating the above procedures. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 76: Front Derailleur

    Fine tuning on racing style bicycles fitted with dual control (STI) levers is done by first shifting the chain to the largest rear sprocket and the largest Top view of front derailleur showing alignment SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 77: Reflectors

    WARNING: Reflectors are not a substitute for proper lights. Riding at dawn, at dusk, at night or at any other times of poor visibility without a bicycle lighting system which meets local and state laws and without reflectors is dangerous and may result in serious injury or death. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 78: Accessories

    Rear lights must have a red beam; they often have a flashing mode which makes them highly visible to other road users. Lights should always be used in conjunction with your bicycle’s fitted reflectors. Before riding make sure batteries are properly charged and dynamo power cables are properly connected. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 79 Better than a simple speedometer, bicycle computers come with a number of functions so you can measure your speed, distance travelled and time. They are a very useful aid for fitness training. 13 . Mudguards Prevent road dirt and water from soiling your clothes and getting in your eyes. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 80 All of these actions should be carried out while you and your bike are stationary and moved to the side of the road, path or trail. By obeying the road laws, riding safely and in control, your riding experience will be enjoyable and incident free. SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

  • Page 81: Troubleshooting

    Replace brake blocks Brake blocks/rim greasy, wet or dirty Clean blocks and rim Brake cables are binding/stretched/damaged Clean/adjust/replace cables Brake levers are binding Adjust brake levers Brakes out of adjustment Centre brakes SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...
  • Page 82 Internal rust Disassemble damper and replace damaged parts Damaged internal parts Refer to specialist mechanic Knocking from rear end of Broken suspension mount Repair/replace frame suspension model Worn suspension bushing Replace worn components SC/2012 SHEPPARD CYCLES ABN 60 082 376 289...

Table of Contents