Related Manuals for Brompton OM4-1
Summary of Contents for Brompton OM4-1
- Page 1 OWNERS MANUAL NORTH & SOUTH AMERICA OM4-1 MAINLAND EUROPE ISO 4210-2 CITY AND TREKKING BICYCLES CPSC 16 CFR 1512...
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Page 3: Table Of Contents
CONTENTS INTRODUCTION SAFETY UNFOLDING FOLDING USING THE BROMPTON GEARS BRAKES LIGHTING LUGGAGE CLEANING & LUBRICATION ADJUSTING THE SADDLE POSITION SADDLE HEIGHT INSERT FITTING BRAKE LEVER ADJUSTMENT REAR WHEEL REMOVAL AND FITTING ROUTINE REPLACEMENTS WARRANTY OTHER LANGUAGES FRENCH ITALIAN SPANISH PORTUGESE... -
Page 4: Introduction
This manual contains some tips and advice for using your Brompton but if you are ever unsure of how to maintain your bike, visit an authorised Brompton dealer for expert advice. -
Page 5: Safety
110kg (rider and luggage weight included). A Brompton is not intended for stunts, cross-country riding or extreme sports. Your Brompton should be used for its intended purpose. Misuse may lead to failure of some components and void your Brompton warranty. We do not recommend fitting a child seat or trailer to the Brompton, doing so will invalidate the Brompton warranty. -
Page 6: Unfolding
UNFOLDING THE BIKE Take some time to look at the bike folded; it helps when you come to fold it again. Stand on the left (non-driveside) of the bike. Unfold the left-hand pedal by pulling the toothed metal cage towards you. As you do this note how the black catch operates as this will help you when folding. - Page 7 • Undo the seat clamp lever, pull the seatpost up and re-clamp • Place your right hand on the saddle & hold the handlebar stem with your left hand, near the hinge • Look down where the chain runs between the two wheels and you will see the black hook holding the front wheel to the rest of the bike •...
- Page 8 • Swing your left hand away from you in an arc to push the fork and front wheel away from you, push until the hinge on the main frame is closed • When doing this do not twist your wrist; make sure to keep the front wheel pointing in the same direction, the hook must remain on your side of the bike and the...
- Page 9 • To complete the unfold, hold the handlebar with your left hand, with your right hand lift the bike up swiftly by the saddle and swing the rear wheel will backwards and into position • Push down on the saddle to ensure the suspension block pushes against the mainframe;...
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Page 10: Folding
FOLDING THE BIKE • Turn the handlebar slightly to the left so it is not parallel with the rear wheel & spin the cranks so the right-hand pedal is pointing backwards • There is a small black lever behind and below the seat clamp. Press it forward, then lift the back of the bike swiftly so the rear wheel swings under the frame, then lower the bike so it sits in the ‘parked’... - Page 11 • With your left hand hold the handlebar stem above the plastic nipple, swing the front wheel away & to the right • Bring the stem round in a clockwise stirring motion, don’t twist your wrist & keep the hook facing you, untill the front wheel is alongside the rear; you may need to lift the front of the bike a little •...
- Page 12 • If you can’t lift the plate, turn the pedal over & try again The bike is now folded and ready to be picked up and carried. Brompton saddles have a tailored grip plate underneath the ‘nose’ of the saddle.
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Page 13: Using The Brompton
Brompton bikes are fitted with Schrader valves, allowing various methods of inflation. The Brompton pump is installed on the rear frame of all-steel Bromptons with mudguards. When replacing the pump on the bike, make sure that it has full engagement with the pump locators on the rear frame. -
Page 14: Gears
USING THE SHIFTERS A Brompton can be fitted with either 1, 2, 3 or 6 gears. 2-speed bikes feature a left hand shifter, 3-speed bikes a right hand shifter and 6-speed bikes use both a left and right hand shifter. - Page 15 ƒ These shifters were introduced on 2017 bikes ƒ This shifter is not compatible with older brake levers or pre-2017 M/H Type bars ƒ If you are unsure about any fitting or operation instructions please contact a Brompton dealer USING THE SHIFTER The 3-speed shifter uses a self-returning lever to change between the three gears.
- Page 16 REMOVING THE GEAR CABLE • Select gear 3 on the shifter, backpedal to engage the hub CABLE HOUSING • Unscrew the indicator chain locknut (fig. 4) • Unscrew the indicator chain from the gear cable anchor CABLE PULLEY • Undo the gear cable anchor clamp nut and INNER CABLE release the inner gear cable •...
- Page 17 ƒ These shifters were introduced on 2017 bikes ƒ This shifter is not compatible with older brake levers or pre 2017 M/H Type bars ƒ If you are unsure about any fitting or operation instructions please contact a Brompton dealer USING THE SHIFTER The 2-speed shifter uses a self-returning lever to change between the two gears.
- Page 18 FITTING THE SHIFTER Fig. 9 The shifter mounts to the right hand brake lever, it TORQUE 0.35Nm is held in place by two M3 screws, these should SHIFTER be tightened to 0.35Nm. Do not overtighten the screws as this can reduce the performance of the shifter and damage the parts.
- Page 19 FITTING A NEW CABLE • Screw the barrel adjuster (fig. 11) fully clockwise so that it is at its shortest setting, then unscrew by 2 turns • Select the lowest gear (-) and then press the shift lever downward so it does not obscure the cable entry hole •...
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Page 20: Brakes
You should adjust your brakes on a regular basis as they are critical to your safety. The time between adjustments will vary depending on how often you use your Brompton; if your brake lever touches the handle bar when you pull on it, your brakes need urgent adjustment. The brakes should be set so that the brake pads are as close to the rims as possible without interfering with the rotation of the wheels. -
Page 21: Luggage
Using incorrect luggage may interfere with steering and could be dangerous. Note: All Brompton front luggage is suitable for use on M, H and P Type Bromptons, but the T Bag, C Bag and Folding Basket are not suitable for use on S Type Bromptons. - Page 22 REAR CARRIER PLATFORM The rear carrier platform mounts to the rear frame in two points, the brake tube (fig. 15) and the dropouts (fig. 16). The rear mudguard mounts to the rack (fig 15, 17) in two positions. Before starting it is worth removing the rear wheel from the bike in order to make it easier to fit or remove the rack, information on this can be found on page 30.
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Page 23: Cleaning & Lubrication
Ensure that any luggage fitted does not obscure the reflectors and any lighting fitted to the bike. The Brompton front carrier block, carrier frames, front luggage, rear rack and rear luggage are only compatible with Bromp- ton bikes. Only luggage carriers and luggage manufactured or distributed by Brompton Bicycle Ltd should be used with the Brompton bike. -
Page 24: Adjusting The Saddle Position
Pentaclip to 15Nm. ADDITIONAL SADDLE HEIGHT If you can’t gain enough height by re-positioning the saddle, there are two Brompton options which give more height: a telescopic seatpost and a longer seatpost extended by 60mm. The telescopic post can accommodate the needs of taller riders, with little change to the folded size. -
Page 25: Saddle Height Insert Fitting
If you are unsure about the fitting process, your Brompton dealer will be able to assist you ƒ... - Page 26 MEASURING AND CUTTING THE INSERT ƒ Raise the seatpost to maximum height Place the insert upside down against the post at the top of the seat-slide tube as shown (fig. 21) and ƒ mark the groove in the insert, closest to the mark on the seatpost Carefully cut the insert along this groove with scissors (fig.
- Page 27 Check the saddle height is correct at full extension, small adjustments can be made by ƒ moving the Pentaclip position up or down slightly on the post (fig. 24), for more information see https://www.brompton.com Fig. 23 Seat slide tube Fig. 24...
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Page 28: Brake Lever Adjustment
BRAKE LEVER ADJUSTMENT In order to achieve a comfortable and safe brake lever position, it is important to spend some time ensuring the lever is correctly adjusted. Depending on your hand size, you can adjust the distance of the lever from the bar;... - Page 29 Correct cable routing and cable housing length is essential; cables must pass in front of the handlebar, to the left of the handlebar support and to the right of the main frame tube. IF YOU ARE UNSURE ABOUT ANY OF THESE ADJUSTMENTS CONSULT YOUR BROMPTON DEALER, DO NOT ATTEMPT TO USE THE BIKE WITH POORLY ADJUSTED BRAKES...
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Page 30: Rear Wheel Removal And Fitting
REAR WHEEL – REMOVAL AND REFITTING When removing the rear wheel it is easiest to do with the bike in a workstand to lift it from the floor, or with the bike in the parked position (see folding instructions p10) so that the bike can support itself. If the tyre is deflated it can pass through the brake pads more easily. -
Page 31: Routine Replacements
ALUMINIUM COMPONENTS As on other lightweight machines, aluminium alloy is used in the construction of the Brompton, and this material has a finite design life before failure. In normal use, the risk of aluminium fatigue failure is remote, even after many thousands of miles. However, the risk of failure increases with use, especially with hard riding or other severe loading. - Page 32 100-MILE SERVICE Certain items on any bicycle take time to bed in; to avoid damage, these need attention soon after you have bought the bike. We recommend having your Brompton checked by a qualified mechanic after the first 100 miles or 1-month (which ever comes sooner). They should pay particular attention to the following items: SPOKES The tension of the spokes should be checked and adjustments made to suit.
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Page 33: Warranty
(in the case of the frame, two years if not registered) or two years (in the case of other parts) of the date of first purchase of the bicycle. The Brompton is for use on roads and well-made paths. - Page 34 In addition, misuse will include, but not be limited to, any use of the bicycle which does not constitute normal road use, as your Brompton is intended for use on roads and well-made paths. It is not...
- Page 35 Register your bike online at https://www.brompton.com Enregistrez votre vélo en ligne sur https://www.brompton.com Registrare la bicicletta online presso https://www.brompton.com Registre su bicicleta en línea en https://www.brompton.com Registe a sua bicicleta online em https://www.brompton.com Registrieren Sie Ihr Fahrrad unter https://www.brompton.com Registreer uw fiets online op https://www.brompton.com...