Entries by Rob Granville

CARBON BIKE INSPECTION SERVICE

If you have a scratch or a mark on your carbon bike which you would like a qualified carbon bike inspector to look at then drop us an email or a message and we will inform you of the next steps. There is no reason why you need to worry before riding out this summer. […]

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 […]

CREAKING COMING FROM MY DOWNTUBE

I was asked to look at what might be delamination in the down tube area during an inspection procedure. At first we could not solve where a creaking sound was coming from because the scanner could not find anything and it sounded similar to de-lamination so we had to find it. I won’t mention the […]

REPAIRING A CARBON RECUMBENT

We don’t often get asked to repair recumbents but this one is a super light disabled version which is clearly an expensive and hard to find bike. The structural damage affected the chasis and the safety nose cone. I am glad to say we were able to complete this as well as hide the repair […]

HOW TO PACK YOUR CARBON BIKE FOR TRAVEL – PART 2.

Firstly there are a few things we need to clear up:
 Carbon is not abrasive friendly. Bags and cardboard are not abrasive friendly. Simply covering tubes with lagging foam does virtually NOTHING to stop external blunt force from distorting and cracking the frame.
The general rule to safely transport a bike in a soft bag/ cardboard […]

HOW TO PACK YOUR CARBON BIKE FOR TRAVEL – PART 1.

Soft or hard boxes? The debate rolls on. I always thought hard boxes were the safest until a cyclist friend, who actually worked as a bag packer at Gatwick, suggested that soft bags/ cardboard were generally treated more carefully while the hard cases often were found at the very bottom of a pile of holiday […]

MOUNTAIN BIKE PAINT

How have the manufacturers responded to the elements that can affect paint on a typical carbon mountain bike? You have 2 options it seems: 1 – Powder coat the frame if it is alloy. The limitations are in the colour choice and the designs limitations but it is as hard as nails. 2 – The […]

CAN A CARBON REPAIR BE TOO STRONG?

Yes. This mountain bike came in for an inspection requested by a concerned customer after it was repaired by another carbon repairer. The large ‘block’ of carbon (pic left) now present on the BB/ downtube is much thicker then the original tube wall. As a result if this area were knocked during riding it will […]

WE STAND BY OUR WARRANTY

This customer had a custom respray last year. Over time it developed paint flaws which were consistant with an error in the paint process. We inspected under microscope and discovered shrinking and adhesion issue which was not down to user error: ‘Hi Ben Frame received back thanks for standing over your work. Thanks Alan’

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.’