Assembly Instructions – 700C Commuter Bikes

Models include: Diamondback Serene

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Open the carton from the top, and remove the bicycle. Remove the straps holding the front wheel, handlebar assembly, and the following components: Seat post with saddle, pedals and any other components. Remove the protective paper wrapping from the bicycle.

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Remove the protective cap from the handlebar stem and loosen the centre bolt in the head stem using a 6mm Allen Key. Insert the handlbar and headstem assembly into the head tube of the bike. Re-tighten the headstem ensuring the minimum insert mark is fully covered, with both handlebar and forks facing the front. To adjust handlebars to correct angle loosen clamp bolts using 6mm allen key. Ensure clamp bolt is firmly re-tightened.

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Insert the seat post with saddle into the seat tube of the bicycle, ensuring the minimum insert mark on the seat post is fully covered inside the frame. Adjust and firmly tighten the Quick Release seat tube clamp, closing the lever so it is horizontal and facing forward. If resistance is not firm, open the QR lever and tighten the adjusting nut in a clockwise direction. Close the lever and repeat if necessary.

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Turn the bicycle upside down and rest it on the seat and the handlebars. Where a front mudguard is supplied this should be attached before fitting the front wheel. Position with short end facing forward and attach metal bracket behind the 10mm nut fixed to the rear of the brake centre bolt. Insert the front wheel into the forks ensuring that the axle fits well up against the fork end slots. Where supplied, ensure that the small tab on the washer under the wheel nut is located in the slot on the forks. This tab will ensure that the wheel will not fall out should the nuts come loose. Place mud guard rods over the axle and tighten the wheel nuts using a 15mm spanner.

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Attach the pedals carefully, engaging the thread initially by hand. The right hand pedal is marked with an “R” and attaches to the right crank in a clockwise direction (the right side is the one with the chainwheel). The left pedal, is marked with an “L” and attaches to the left crank in an anti-clockwise direction. Tighten pedals very firmly using a 15mm spanner. Note: damage will occur if pedals are not attached in the correct direction and firmly tightened.

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Adjust the front brake by loosening the brake cable at the anchor bolt using a 10mm Spanner. Squeeze the caliper by hand to ensure the pads sit squarely and evenly on the rim. Pull the cable tight and re-tighten the anchor bolt so that the brake pads are a maximum of 2mm from the rim on each side. Fine tune by turning the cable barrel adjuster. Brake shoe nuts and cable anchor must be firmly tightened. Check adjustment for rear brake and test both. Be sure that right hand brake lever operates front brake, and the left lever operates the rear brake.

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Before operating gears, check that the 10mm anchor bolt that clamps the control cable is firmly fastened. Only then test the gears ensuring the drive chain moves freely into each position when the control lever is activated. If further adjustments are needed, refer to the relevant section in The Owners Manual. Attach the bell to the left hand side handlebar. Attach the red rear reflector to the bracket provided and the white reflector to the front. Adjust reflectors to the 90 degree vertical position. Please see separate instructions for basket assembly.

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Important! Do not ride until brakes are operating correctly. Ensure cable end protectors are fitted, crimping with a pair of pliers. Ensure all nuts, bolts and fittings have been correctly tightened and tyres inflated to pressure written on tyre sidewalls. Ensure seat post and head stem are inserted past the minimum marks. Proper maintenance of your bicycle ensures you will enjoy many years of happy riding. We recommend that you book your bike into a bike shop for regular services at no longer than six month intervals to ensure maximum performance.

You’re done.
Happy riding!