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MAINTENANCE & RE

PAIR

Axle

Lock Nut

Hub Body

Ball Bearings

Bearing

Cone

Washer

Axle Nut

Lock Nut

Lock Washer

Adjusting Cup/Cone

Ball Retainer

Top Head Cup

Standard Headset

HUB BEARING ADJUSTMENT

When checked, the hub bearings of either wheel will require adjustment if
there is any more than slight side play.
1. Check to make sure neither locknut is loose.
2. To adjust, remove wheel from bicycle and loosen the locknut on one side
of the hub while holding the bearing cone on the same side with bicycle cone
wrench or flat, thin open end wrench.
3. Rotate the adjusting cone as needed to eliminate free play.
4. Re-tighten the locknut while holding the adjusting cone in position.
5. Re-check that the wheel can turn freely without excessive side play.

HEADSET

INSPECTION

The headset bearing adjustment should be checked every month. This is import-
ant as it is the headset which locks the fork into the frame, and if loose, can cause
damage or result in an accident. While standing over the frame top tube with both
feet on the ground, apply the front brake firmly and rock the bicycle back and forth;
if you detect any looseness in the headset, it will need adjustment. Check that the
headset is not over tight by slowly rotating the fork to the right and left. If the fork
tends to stick or bind at any point, the bearings are too tight.

Note:

If your bike is equipped with a threadless headset, please see a qualified

specialist for repairs and adjustments.

ADJUSTMENT

Loosen the headset top locknut or remove it completely along with the reflector
bracket, if fitted. Turn the adjusting cup clockwise until finger tight. Replace the
lock washer or reflector bracket and tighten the lock nut using a suitable wrench.

Note:

Do not over tighten or bearing damage will occur.

WARNING! Always make sure that the headset is properly adjusted and that
the headset locknut is fullytightened before riding.
WARNING! Over tightening the stem bolt or headset assembly may cause
damage to the bicycle and/or injury to the rider.

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Содержание BMX

Страница 1: ...BMX FREESTYLE BIKE ASSEMBLY ...

Страница 2: ...before riding your bike Please retain this manual for future use This manual is provided to assist you and is not intended to be a comprehensive manual covering all aspects of maintaining and repairing your bicycle The bicycle you have purchased is a complex piece of equipment that must be properly assembled and maintained in order to be ridden safely If you have any doubts about your ability to p...

Страница 3: ... ride within their abilities and should wear a safety helmet at all times A parent should check the bike regularly and do required maintenance RESPONSIBILITY OF THE OWNER Reading and following the information and instructions in this manual are essential to your ability to ride safely 1 It is the responsibility of the owner or in the case of a younger rider the parents of the rider to be certain a...

Страница 4: ...hat you assume the risk for personal injury damages or losses incurred from such use Do not ride your bike when any part is damaged If you are unsure how to carry out repairs or mainte nance on your bike it is vital that you consult a local bike mechanic for professional support WARNING As with all mechanical components the bicycle is subjected to wear and high stresses Different materials and com...

Страница 5: ...Parts Identification Graphics 5 6 Before Riding 7 10 Assembly Instructions 11 27 Maintenance 28 40 Warranty 41 WARNING CAUTION ...

Страница 6: ......

Страница 7: ...FREESTYLE PARTS IDENTIFICATION ...

Страница 8: ... assembling or adjusting the bike please take your bike to a professional bike repairman 1 WARNING ON AND OFF ROAD CONDITIONS The condition of the riding surface is very important If the surface is wet or has sand small rocks or other loose debris on the surface carefully decrease the speed of the bicycle and ride with extra caution It will also take a longer time and more distance to stop Apply t...

Страница 9: ... don t park your bicycle where it can get in the way of foot vehicle traffic 12 Be careful at all intersections Slow down and look both ways before crossing 13 Use hand signals Always let other drivers and pedestrians know what you are going to do Signal 100 ft before turning unless your hand is needed to control the bike 14 WARNING NIGHT TIME OPERATION We do NOT recommend riding your bike at nigh...

Страница 10: ...e questions about your ability to properly assemble this bicycle please consult a professional bicycle mechanic before riding TO AVOID INJURY THIS PRODUCT MUST BE PROPERLY ASSEMBLED BEFORE USE WE STRONGLY RECOMMEND THAT YOU REVIEW THE COMPLETE ASSEMBLY GUIDE AND PERFORM CHECKS SPECIFIED IN THE OWNER S MANUAL BEFORE RIDING Each bicycle has a serial number stamped into the bottom of the frame See Il...

Страница 11: ...M INSERTION MAXIMUM HEIGHT MARK SHOULD NOT BE VISIBLE WHEN THE SEAT POST IS INSERTED INTO THE SEAT MAST OF THE BIKE DO NOT RAISE THE SEAT POST BEYOND THIS MARK THE SEAT POST MAY BREAK CAUSING YOU TO LOSE CONTROL AND FALL ALWAYS CHECK TO MAKE SURE SEAT POST ADJUSTING MECHANISM IS TIGHTENED SECURELY BEFORE RIDING Arms not overextended Handlebar stem height about the same as seat height Pedal bottom ...

Страница 12: ...tecting the frame FRONT WHEEL 1 Remove the nuts washers and wheel retainers from the front wheel axle if necessary If these are not on the wheel axle they will be included int he hardware bag 2 Slide the wheel onto the open ends of the fork Slip an axle retainer onto each end of the axle and hook the retainers into the holes in the fork end Loosely install the washer onto each end of the axle serr...

Страница 13: ...tand 3 From the left side of the bicycle opposite side from chainring place the kickstand in position beneath the two rear fork legs 4 Place the top plate flange down onto the mounting bolt 5 Replace the washer and nut onto the mounting bolt Hold the kickstand arm in an up position aligned with the frame stay then securely tighten the mounting bolt 6 Leave the leg of the kickstand down so it will ...

Страница 14: ... arm tighten the spindle securely to the crank arm with a 15mm open end or an adjustable wrench 2 Turning the spindle counterclockwise by hand thread the pedal marked L into the crank arm on the left side of the bike Make sure that you are not cross threading which can strip the threads in the crank arm If the threads do not turn easily don t force them Back the spindle out and start over Once the...

Страница 15: ... parallel to the ground or comfortable to the rider 7 Retighten the seat clamp nuts securely Check for tightness by attempting to twist the seat If the seat is loose be sure to tighten the clamp nuts and binder bolt securely Torque requirement 15 20 ft lbs THE SEATPOST MINIMUM INSERTION MAXIMUM HEIGHT MARK SHOULD NOT BE VISIBLE WHEN THE SEAT POST IS INSERTED INTO THE SEAT MAST OF THE BIKE DO NOT R...

Страница 16: ... frame Be surethat the seat post is inserted past the Minimum Insertion Line Review SADDLE HEIGHT guidelines on page 19 5 Tighten the tension adjusting nut by hand and move the quick release lever to the closed position NOTE Turning the tension adjusting nut clockwise while keeping the lever from rotating reduces clamping force Less than half a turn of the tension adjusting nut can make the differ...

Страница 17: ...en the expander bolt to allow the stem to fit the fork tube 3 Place a drop of oil under the head of the expander bolt Tighten the expander bolt just enough to hold the stem in place 4 Raise or lower the handlebar stem until you have reached the desired height for your child and then position the handlebar so it is perpen dicular 90 degrees to the front wheel Next tighten the expander bolt to the r...

Страница 18: ... condition at all times Open the brake lever and place the nipple end of the short brake cable into the lever then close the lever Secure the ferrule against the lever using the cable adjusting barrel SIDE PULL CALIPER BRAKE Loosen the cable anchor nut and thread the brake cable through it Tighten the nut by hand until it holds the cable in place Squeeze the brake arms together against the rim of ...

Страница 19: ...hor bolt All instructions shown are if you are looking at the bike from the front For brake adjustments use a 13mm box end wrench and a 5mm hex wrench Loosen the 5mm hex bolt For the drive side left of the bike turn the spring tension nut with a 13mm box end wrench counter clockwise to increase tension on the spring For the non drive side right turn spring tension nut with a box end wrench clockwi...

Страница 20: ...the bike turn the spring tension nut with a 13mm open end wrench counter clockwise to increase tension on the spring For the non drive side left turn the spring tension nut with a box end wrench clockwise to increase tension on the spring When the desired tension is achieved hold the tension nut with the 13mm wrench and tighten the 5mm hex bolt The tension on each side should be equal so that the ...

Страница 21: ... 1 Slide the cable casing through the cable guide on the frame 2 Connect the lower cable to the lower plate by passing the football ends of the lower cable through the threaded holes in the lower plate and connecting them to the bearing 3 Screw the adjusting barrels into the lower plate Don t tighten the locknuts at this time 4 Connect the lower cable to the rear brake Don t adjust the rear brake ...

Страница 22: ...ng barrel on the lower cable c Rotate the handlebars 180 degrees and recheck for bearing flop If there is any bearing flop use the loose adjusting barrels on the upper and lower cable to remove it d Repeat steps 6a and 6c until the handlebars can be rotated 360 degrees without any bearing flop 7 Finish adjusting the rear brakes WARNING DO NOT LOCK UP BRAKES SUDDEN OR EXCESSIVE APPLICATION OF THE F...

Страница 23: ...able Splitter Upper Cable short casing Upper Cable long casing Upper Plate Bearing Football Ends Lower Plate Lower Cable Adjusting Barrel Locknut Keyed Washer Locknut Adjusting Barrel 37mm or 1mm Set for Max Travel Minimum 1mm 1 32 CABLE DETANGLER ...

Страница 24: ...river can be placed through the mounting holes to help in turning peg onto the axle 3 Tighten against the frame or fork for a snug fit repeat for all pegs included NOTE Some bikes come with 2 pegs some with 4 pegs NOT ALL AXLES ARE ABLE TO ACCEPT PEGS THE AXLE SHOULD PROTRUDE AT LEASTE AN INCH FROM THE AXLE NUT TO ACCEPT PEGS please consult a professional bike mechanic if you have questions regard...

Страница 25: ...different terrain or weather condi tions depends largely on tire pressure Inflating the tire to near its maximum recommended pressure gives the lowest rolling resistance but also produces the harshest ride High pressures work best on smooth dry pavement Very low pressures at the bottom of the recommended pressure range give the best performance on smooth slick terrain such as hard packed clay and ...

Страница 26: ...racket and then through the fork Next insert a second washer onto the bolt and thread a hex nut onto the bolt behind the fork Tighten bolts until snug making sure the reflector is in an upright position Your bike is supplied with one front white one rear red two wheel white reflectors and four pedal orange reflectors These are an important safety and legal requirement and should remain securely fi...

Страница 27: ...he reflector bracket 2 Push open the bracket loop and slide in over the handlebar tube If there is a sizing insert included with the bracket please be sure it is inside the clamp loop before mounting 3 Position the reflector bracket on the handlebar between the grip and crossbar about 5 from the end of the handlbar 4 Tighten the clamp screw securely CAUTION Be sure the reflector is vertical to the...

Страница 28: ...AY BRACKET First insert one washer onto the hex bolt and insert hex bolt through the reflector bracket and then through the seat stay bridge bracket Next insert a second washer onto the bolt and thread a hex nut onto the bolt behind the seat stay bridge bracket Tighten bolts until snug Finally adjust the reflector assembly in place and ensure that it is upright and facing away from the brike CAUTI...

Страница 29: ...rops from oil can disassemble 2 squirts from oil can disassemble Bicycle Mechanic disassemble disassemble Bicycle Mechanic Bicycle mechanic disassemble Schedule 1 Lubrication Note The frequency of maintenance should increase with use in wet or dusty conditions Do not over lubricate remove excess lubricant to prevent dirt build up Never use a degreaser to lubricate your chain WD 40 MAINTENANCE REPA...

Страница 30: ...tight Check hub head set and crank bearings for looseness Check pedals are tight Check handlebars are tight Check seat and seat post are tight and comfortably adjusted Check frame and fork for trueness Check all nuts and bolts are tight Lubrication as per schedule 1 Check all points as per monthly service Check and replace brake pads if required Check chain for excess play or wear Lubrication as p...

Страница 31: ... 4mm 5mm 6mm 8mm 4 Adjustable wrench 5 Standard flat head screwdriver 6 Standard Phillips head screwdriver 7 Standard slip joint pliers 8 Tire pump 9 Tube repair kit 10 Tire levers Travel Tools 1 Spare tube 2 Patch kit 3 Pump 4 Tire levers 5 Multi tool We suggest you take the following items with you when going on a long bike ride 6 Cell phone or change for a pay phone 30 ...

Страница 32: ...f true If wheels are not straight they will need to be adjusted This is quite difficult and is best left to a professional bicycle mechanic Broken or loose spokes Check that all spokes are tight and that none are missing or damaged Caution Such damage can result in severe instability and possibly an accident if not corrected Again spoke repairs are best handled by a mechanic Loose hub bearings Lif...

Страница 33: ...tion This can cause the tubes to over inflate and blowout Bead Seating When inflating or refitting the tire make sure that the bead is properly seated in the rim Tread Check that the tread shows no signs of excessive wear or flat spots and that there are no cuts or other damage Caution Excessively worn or damaged tires should be replaced Valves Make sure valve caps are fitted and that valves are f...

Страница 34: ... rim tape which covers the spoke ends 8 Remount one side of the tire onto the rim 9 Using a hand pump inflate the tube just enough to give it some shape 10 Place the valve stem through the hole in the rim and work the tube into the tire Note Do not let it twist 11 Using your hands only remount the other side of the tire by pushing the edge toward the center of the rim Start on either side of the v...

Страница 35: ...e and if loose can cause damage or result in an accident While standing over the frame top tube with both feet on the ground apply the front brake firmly and rock the bicycle back and forth if you detect any looseness in the headset it will need adjustment Check that the headset is not over tight by slowly rotating the fork to the right and left If the fork tends to stick or bind at any point the ...

Страница 36: ...ustments see the appropriate section in the manual for the type of brakes on your bicycle To adjust squeeze the brake pads against the rim loosen the locknut and turn the adjuster Brake pad clearance should be a maximum 2mm from the rim When correct retighten the lock nut If the pads cannot be set close enough to the rim in this manner you may have to adjust the cable length Screw the barrel adjus...

Страница 37: ...then the bearings should be removed cleaned and greased every six to twelve months Because of the wide variety of pedal types and their internal complexity disassembly procedures are beyond the scope of this manual and further assistance should be sought from a professional bicycle mechanic Attachment Note The right and left pedals of a bicycle each have a different thread and are not interchangea...

Страница 38: ... move the wheel forward to loosen or backward to tighten in the frame 2 When correctly adjusted the chain should have approximately 10mm of vertical movement when checked in the center between the chainwheel and rear sprocket Center the wheel in the frame and re tighten the axle nuts after any adjustment Chains require a special tool to fit and remove chain links or to change the length We recomme...

Страница 39: ...vel out of adjustment Stiff chain link Loose pedal axle bearings Loose bottom bracket axle bearings Bent bottom bracket or pedal axle Loose crankset Pedal bearings too tight Bottom bracket bearings too tight Chain fouling derailleurs Derailleur jockey wheels dirty binding Remedy Lubricate tighten replace cables Adjust derailleurs Adjust indexing Replace chainring sprockets and chain Replace chain ...

Страница 40: ...ms loose Bulge in the rim or rim out of true Brake mounting bolts loose Brakes out of adjustment Fork loose in head tube Axle broken Wheel out of true Hub comes loose Headset binding Hub bearings collapsed QR mechanism loose Remedy Lubricate If problem persists replace freewheel Replace brake blocks Clean blocks and rim Clean adjust replace cables Adjust brake levers Center brakes Replace blocks C...

Страница 41: ...rp object embedded in tire Correct tire pressure File down spoke Problem Steering not accurate Frequent punctures Possible Cause Wheels not aligned in frame Headset loose or binding Front forks or frame bent Stem wedge bolt not tight Inner tube old or faulty Tire tread casing worn Tire unsuited to rim Tire not checked after previous puncture Tire pressure too low Spoke protruding into rim 40 ...

Страница 42: ... modified in any other way Ridden by more than one person at a time Rented or used for commercial purposes Used in a manner contrary to the instructions in this Owner s Manual Kent International will not be liable for incidental or consequential loss or damage due directly or indirectly from use of this product For how long does this Warranty last The frame is warranted for the usable life of the ...

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