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What Can And Cannot Be Repaired On Carbon Wheels?

Whilst clearly we can repair most areas of damage on a carbon frame, can the same be said for carbon wheels? Carbon wheels are certainly a lot more subjective in terms of whether a repair is viable, but we can effect repairs to some areas.

The areas that we generally can’t repair are fracturing to the brake track (on a rim brake wheel), the bead area and spoke hole areas. As rider safety is our first priority, these specific areas are very difficult to test to the limits with non-destructive testing. As such, we do not undertake these repairs.

In terms of fracturing, we can generally repair any other area, as long as it doesn’t go into any of the above areas. We have successfully repaired many types of damage to rim fairings for example.

If you have cosmetic or other damage, we generally treat each case on its own merits. Perhaps email in with your issue first and we can advise from there.

We sometimes get requests where a brake track has warped after heat build-up going down a descent. We can generally help here but we need to ascertain how warped the brake track is and make a judgement from there.

So if you do manage to damage your carbon wheels, before you bin them or just go for a straight replacement, why not get in touch with us first to see if we can help?

The Importance Of A Stripped Frame

If you have ever enquired for a quote or had a repair or restoration work carried out by CBR, you’ll know that we require a completely stripped and clean frame to work on. We can, of course, strip it for you. Yes, even little things such as bottle cage bolts, hangers, cable guides and bearings need to be removed! Whilst perhaps you might think of this as somewhat over the top with some of the modern designs out there (I’m thinking integrated front ends, frames with convoluted cable routing to name but a few examples), there are various logical reasons why this is required.

During the repair and restoration process, your frame is hung in various mounts to allow it to be worked on at different angles. Both the carbon and spray departments have specific jigs and during transitionary phases between and during each departmental stage, we employ storage racks. With the amount of frames we have here at CBR, we have to be extremely thorough and organized to run a coherent operation.

Your frame will be cured at various points during the repair process. We have a specialist curing system that allows a more efficient operation in that they cure quicker than just hanging them to dry for a few days. Curing may also adversely affect the finish on components left on the frame if it wasn’t fully stripped.

Your frame will also be going into a spray booth. When the spray team work, they have to carefully mask the entire frame, which is a time-consuming process. If components are not removed, it makes masking more difficult and there is a greater chance of overspray.

We hope this article has provided more insight into our processes and why we require a stripped frame. If you are unable to strip the frame fully yourself, we also have a fully equipped workshop here at CBR with Cytech-qualified expert mechanics. Alternatively, you could use your trusted local bike shop. If you are going to part-strip the frame yourself and let us do the rest, as some customers do, please note that we require the wheels if you would like us to set your gears and brakes up.

Supporting our NHS Heroes – 15% Discount!

Carbon Bike Repair Ltd are offering all NHS staff 15% off any carbon fibre repair, paint restoration and / or servicing.

The discount will be added to the final invoice. You will need to show us your NHS ID card to qualify for this discount.

This offer excludes any replacement parts or components, full resprays, courier / postage fees, and cardboard boxes.

This offer is only valid on authorisations received on the ‘final’ estimates (i.e. we have your bike in our possession and have seen the damage) up to and including 10th June 2020.

 

WE HAVE RE-OPENED!

Having considered the amount of carbon work we have on hold, we have decided to re-introduce a small team to clear the backlog as quickly, and as safely as possible. Please understand that this lockdown has, and is still, causing some lead time delays. The good news is we are back and plugging through the workload. We can also mechanically service your bike without delay.

Please call (01372 372766) or email us (info@carbonbikerepair.co.uk) us if we can help sort your bike out before we get busy again. We are available from 9 am – 3pm, Mon to Fri until further notice.

If you have to visit us at our premises please can you call us ahead of time and we ask you to remain outside and a member of staff will attend to you. Please remember to practice social distancing of 2 meters at all times.

Wishing you all good health and happy riding during this lockdown!

HOW TO SPOT A FAKE F10 PINARELLO

We recently came into the possession of a fake F10, so we thought we would share the differences with you. Please note that this is only one of many replicas flooding the market.

What’s so bad about a fake carbon bike then?

Carbon Bike construction is almost impossible to unpick. When layers of are sandwiched with inferior material to make it cheaper, you can see it until it breaks. We’ve seen mostly dangerous examples so I would question any seller of a high end bike where there is no paperwork.

Luckily it is pretty easy to spot the poor graphics against a real one.

Can you spot the fake? Look at the photos below.

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qualified repair CarbonBikeRepair

CAN A MANUFACTURER REPAIR A BIKE?

Consider this – If you damaged your car door, and you have to repair it, who is best skilled to do the job?

The manufacturer uses machinery, materials and automation processes to construct an entire component, however the repairer is skilled to remove damage and restore utilising totally different tools and skills for the job.

In carbon it is much the same, bikes are manufactured using a variety of machinery to mould semi-complete components which require assembly as well as inspect for manufacture anomalies. The repairer is equiped to identify fracture anomalies, largely not experienced by the manufacturer. The repairer utilises a variety of diagnostics and localised repair processes, again, uncommon to the manufacturer.

The two skill sets are unrelated and should not be confused with each other.

RESULTS OF POOR CARBON REPAIR

We recently received this bike with a top fracture. It did not take long to discover that a previous repair had taken place.

We recognise the repairer’s work in this case. What’s the fuss? Remember how I always bang on about symmetry and repairs which meet the specifications of the surrounding material, well when we find that the repair is thicker then the surrounding material this occurs.

Why? Because the frame is designed to specifically respond to the flexing and movements subjected to it. When you stop this from happening then this occurs. You notice the original carbon has cracked on the edge of the repair.

COLNAGO C60 OTTANTA 5 REPAIRS AND RESTORES

I seem to be posting a fair bit of Colnago related stuff. This is not a true reflection on a various brands we work on every day. That said CBR have 2 of only 9 in the UK. Both suffered some sort of damage and require precise restoration.

 

HUMMINGBIRD CERVELO R3

Take your favourite bike and come away with an inspiring personalised bike that is an extension of you.
Our client liked to introduce a Hummingbird concept to her bike. After some ‘mood boarding’ we sprayed the wonderful bird colours as an effect juxtaposed with a flat gold ‘tattoo’ graphic of the bird near the head tube.
The challenge to avoid a potentially embarrassing concept has been met with great joy. The net result is not wanting to ride the bike for fear of scratching it. Summer here she comes!

SEAT STAY RESTORE ON CANYON CF SLX

This was a bad one. It seems the CF is a bit fragile when it comes to rear mech failure compared with other brands. It is a great bike but if you have one like this don’t skip it!