ARE GRAPHINE BIKES NECESSARY?

Like all things new in the bike world, graphene is the shiny new toy. Everyone is talking about it but is graphene really necessary? I would venture to say no. To clarify – We repair any composite construct and we have a keen interest in graphene as we learn new repair solutions.

Yes, it is a wonderful material and yes it can conduct electricity (so does carbon by the way).  Lightness and stiffness might be another motivation and repair is most likely possible but why am I not as enthused by graphene as I should be?

Carbon has taken bikes to the limit where any further weight shedding may not be in the best interests of all riders. Let me explain – Cycling terrain generally undulates creating benefits and drawbacks depending on the rider and the bike. Inertia is also a benefit so light is not always the ONLY goal.

Carbon bikes are already safely at the tipping point of weight versus stiffness. By loosing several more grams on the frame and adding more stiffness by using graphene will work well in certain circumstances but is only one element in one bikes advantage over another. Carbon is fit for purpose as GRP, Glass-reinforced plastic is for high performance boats.

Graphene is still too expensive and challenging to process. Stocks in graphene, according to Nanalyze, is not yet an invetment opportunity and as a result the prices will not drop anytime soon. However we see an increase in the use of graphene oxide powder which is used to strengthen resin. I would be intrigued to understand how robust a full graphene bike will be to surface impacts and how abrasive resistant it will be in the future. This is where Carbon is not great.

I will let this one play out.

 

BIKE SHOP SUPPORT

We make sure, as with all our bike shops, Sigma Sport are always satisfied with our service:

‘Hi guys,

The frame arrived today and, as usual, the finish is excellent. Just wanted to say a massive thank you for getting this turned around so quickly.

It is very much appreciated.’

BSI STANDARDS FOR CARBON BIKE REPAIR

The BSI Assurance Mark is for organisations whose management systems have met or exceeded the requirements of the BSI standard or scheme. CBR is committed to the highest safety standards, customer service and workmanship. Merry Xmas and hopefully we don’t see you in 2018!

CBR UK team

GEARING UP FOR THE SEASON

Sorry for the delay in putting up a new post. I hope you are enjoying the new website at least. I hope all prospectors will feel confident that their bike is in good hands. After all the cycling community created us!

We are now looking forward to delivering improved lead times without compromising on safety and quality of finish. Our team is expanding to meet the increased demand we face every year so hopefully you will not be too inconvenienced while your bike is restored to your requirements. Keep an eye on the blog. We have some very exciting new tech coming and some news on a CBR near you!
Of course we are aware you only ever want to see us once..safe riding.

HUMMINGBIRD CERVELO R3

Take your favourite bike, bring it in for a top tube fracture repair – 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!

FERRARI COLNAGO C60 IN FOR TREATMENT

One of our oldest trade customers Simon Baxter from Cadenza Cycles in North Yorkshire drove down to sort out this rather precious Ferrari badged Colnago C60 on behalf of his client. Respect!
Being a particular client, understandably Simon chose to make the journey to CBR to ensure the best possible result.
The top tube was cracked and the fine detail of white and silver had to be reinstated. That was the easy part. Replacing the carbon uni-weave section to hide the repair was a bit harder. All good and complete within 2 weeks.
Come and get it Si!

CARBON DROP-OUT REPAIRS

At the close of 2016 I had time to reflect on some of the more challenging ‘repairs’ we undertake on dropouts and to highlight some of the myths surrounding why, in most cases, it is not possible to repair long term without an industrial solution.
Here is why – Carbon Fibre drop-outs are injection moulded components unlike the rest of the bike. This material is super dense. It is designed not to flex or break under skewer pressure. This cannot be replicated by laminate fabrication we see so much of in failed repairs.

Another example was recently brought into CBR to re-repair correctly. Image 2 (close up) shows a botched repair with a metal insert which should never be found in carbon dropouts! You will also note the poor alignment, which, under skewer pressure will change shape and gear indexing will be out.

Image 4 is the correct method. Do not be tempted by a cost saving solution for this issue. We only replace with the original carbon parts.

PINARELLO F8 HIGH PERFORMANCE FRAILTIES

Do not be tempted to clamp it (or any other carbon frame) on the top tube. The F8 is an undeniably successful race bike but mind how you go. As with any hi-end race machine they need to be treated with great care. That is part of the enjoyment of owning an expensive Pinarello but  remembering it is frail for good reason. To win races.

A TYPICAL DAY AT CBR

We are a bike hospital. All our bikes are treated in a dirt free state-of-the-art facility based in Leatherhead Surrey. If you want your bike repaired, restored and serviced correctly then trust the world’s leading bike restoration specialists. Some fly in to see us like Kimberly Renee Shah, TEAM USA. You don’t have to be a pro just drop us an email or call the help desk.
Safe winter riding!

CARBON HEADTUBE REPAIR

One of the more serious fractures to inflict on a bike. This repair required moulds to ensure bearing seat profiles were 100% accurate to Trek tolerances ensuring, apart from failing, that you dont have any creek often associated with the BB bearings…Those who hate noise know what I am talking about..