All about bicycles, electric-assisted bikes, technology and safety in the press

In our daily work as we deal with bicycle safety, technology and user manuals we come across lots of safety risks. The most frequent ones are published in articles of the leading German special-interest magazines TOUR – Europas Rennrad-Magazin Nr. 1, BIKE – Das Mountainbike Magazin Europas Nr. 1 and E-Bike – Das Pedelec-Magazin to make this information important for the sector accessible to a wider public.

For many years now the Eurobike Show Daily accompanying the annual international Eurobike Show has given us the opportunity to publish our perspective on major developments in the cycle industry in full-page articles.

We also speak regularly in independent lectures about all topics relating to bicycle technology and bicycle market. In addition, we are regularly cited by further special-interest magazines or trade journals as well as more and more by radio and television and in their media reports, which shows us that we are completely right with our information. The section NEWS informs you about the latest news from our specialist fields. The reports and publications of this section are listed chronologically or according to topics of interest.

TOUR 02/2014

Cleaning with acetone

Reader’s question

In one of your workshop articles you point out that the parts must be free of grease before mounting the stem. I therefore cleaned the carbon fork steerer tube with acetone, before applying the carbon mounting paste I now learned from a friend that acetone would attack and damage carbon. Now, I don’t know whether or not to replace my fork to be on the safe side.

Reply by Dirk Zedler, TOUR technology expert and bicycle expert

Acetone is a wonderful cleaning agent which may contain however, like all cleaning agents, harmful solvents. Acetone has the potential to attack materials which are otherwise very resistant, just like carbon. Nevertheless, you cannot advise against using acetone with carbon as a rule. There is no risk in wiping off a fork steerer tube with a rag slightly soaked with acetone. If you drown however the fork steerer tube with acetone or if you let the acetone act on it for a long period of time, it cannot be excluded that the fork steerer tube will be damaged as a consequence. As I do not know how you’ve treated your fork steerer tube, I cannot give any further advise. If you decide not to replace your fork, make sure to check the secure fit of the stem at regular intervals. Do not exceed the maximum torque values specified by the bicycle or stem manufacturer and always apply the lower one.

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