Carbon Care

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What do I need to know regarding carbon care instructions?

Bicycle frames made out of carbon fibres are high performance frames. The tube dimensions, wall thickness and orientation of the fibres are specially designed to withstand the stresses that can occur during its intended use and guarantee high comfort and stiffness to give you the best ride possible. Whilst BMC frames are designed to exceed EN safety requirements, the frames are not designed to withstand all foreseen forces. They are not designed to survive all collisions or crashes undamaged and can be delicate for punctual pressures.

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Please respect the following instructions:

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Avoid contact with hard, sharp or pointed objects. Don’t lean your bike with the top tube against a pole or corner of a building.
 

When using a work stand, don’t clamp the bike on any frame tube, fix the bike at the seatpost only.

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While your bike is fixed (by the seatpost) on the work stand, avoid high side loads when replacing the bottom bracket as a lever effect can occur creating damage to the seattube or frame.

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Can I use my BMC bike on a home trainer?

BMC carbon frames should exclusively be used on direct drive home trainers that require the removal of the rear wheel and the use of the original axle.

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Recommended Trainers:

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• WAHOO: Kickr, Kickr Core

• TACX: Flux 2 Smart, Flux S Smart

• ELITE: Direto XR, Suito, Turno

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Important Notice:

Trainers that clamp on the frame are not considered suitable and can damage the frame.
The use of this type of trainer voids the warranty coverage.
The product liability of the trainer and its fixation to the bike is with the trainer manufacturer.

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Can I use a children's seat or trailer with my BMC bike?

Do not clamp any children’s seat or trailer couplings on your carbon frame.

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Can I travel with my BMC bike?

If using soft travel cases or bike boxes to transport your bike, please ensure the frame is well protected (using soft foam wrap) to ensure no components or external pressures can puncture or damage the frame. Please note that the BMC warranty does not cover any transport damage.

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When transporting your bike with a car rack, only fix your bike at the seatpost or fork dropout and never clamp the bike on any frame tube.

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Why can I see the carbon lay-up of my frame through the clear coat?

BMC’s frames are made mostly using UD carbon fibre. UD stands for unidirectional. Unlike more traditional carbon fibre products that use a woven carbon finish (criss-crossed finish like a woven piece of material), UD carbon is a piece of carbon material with the filaments all running in one direction. BMC’s frames are made from many different pieces of UD carbon that are woven together, similar to what is done in textile production. Some of our frames contain around 350 individual pieces of carbon fibre that go into the mould before heating and curing takes place. These material sheets - some very small, some very large - are laid at different angles across each other to achieve different results: torsional strength, compliance areas, rigidity, and so on. The layup of these sheets is extremely important to the end result. This is the art of building a carbon fibre frame.

On our unpainted frames, you can see the result of these carbon fibre sheets overlapping each other through the clear coat covering the frame. We are very proud to be able to show this real effect on our frames. It shows not only the true workmanship of the frame, but also the resulting quality as the frame exits our moulds. Many bike manufacturers prefer to paint their frames because there are often many imperfections in the finish that need to be re-worked using a filler before waiting for it to dry, sanding it, and then giving it a final paint job (a bit like a panel shop). This is a cheaper way to finish the frames, ensures you have no reject quantity, and allows you to use less stringent production techniques.
On unpainted BMC frames, when you look 'into' the frame, you see the quality of what’s on the inside – we are showing you our finish and quality and we are very proud of that.​