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1. Handlebar, stem, grips and purion
The height of the handlebar determines the pressure on your hands and your back posture,
among other things, and therefore, has a substantial impact on your ride comfort. Quantum
Broadway bikes are fitted with upright handlebars that are adjusted with a quick release lever.
Your handlebar should be centered and the grip portion level. To tighten the handlebars, the
lever should be folded closed so that it produces 5Nm to 8Nm of torque.
• If you are unfamiliar with the hand pressure required to properly close a quick release lever
please see your Quantum specialist.
• If you adjust the handlebar height, take care to ensure
that the MAX safety marking on the stem is not visible. If it is visible, it raises the risk of the
handlebar becoming loose and the rider losing control of the bike.
• The stem height can be adjusted by opening the quick release lever below the handlebars.
Again, become familiar with the hand pressure required to ensure the lever is closed properly
and see your Quantum specialist to learn how to do so.
• Avoid accidents, do not adjust the stem or handlebar while riding!
Steering Maintenance
The headset bearings below the handlebar and stem require lubrication every so often. If you
notice that steering is stiff, creaks or does not operate correctly in some other way, then it may
need lubrication. You can go to your Quantum specialist for this.
Steering Safety & Repairs
After an extended amount of use the headset may get a little loose. If this is the case you will
need to visit your Quantum specialist, who has the tools and expertise to address the issue.
Should you have a fall and bend or damage the handlebar or stem as a result, it must be
replaced. Attempting to bend the handlebar back into shape may cause it to break. Deep
scratches in aluminum handlebars risk developing into cracks. This also requires the handlebar
to be replaced.
