absoluteblack  — 06/05/14 — 7:18pm
Marcin here at Absoluteblack.
I always love to read a comment section in here.
It’s normal that everyone speaks from their own shoes perspective, so we have so many different comments (which is great btw). But with a little bit of research you will be surprised how many people actually use 10/11speed chains in their singlespeeds. Moreover they are usually top end DLC ones or similar.
In general we have two types of singlespeed bikes.
1) build from what we have left in shed or our old bike convert to not to spend much cash on that. In the same time one usually do not care if it is heavy (surly cogs for eg) and rather thinks for low cost and good durability.
2) Bikes build on special purpose. Usually owner has 2-3 other geared bikes to ride. So this bike is usually really light, with high end components and 10spd chain.
We are fulfilling the needs of a second group. Like every product on the market it has its own reception group.
On 50km ride your chain can stretch enough (if it was already a bit loose when you started) to drop it while descending. Please also bear in mind that many excellent carbon frames do not have sliding dropouts, so such build will result in a need of a tensioner. If this one gets loose you will drop chain as well. If you have used such tensioner once i am sure you know what i mean.
thanks. 

bicimundo - 06/05/14 — 7:44pm
It’s really unfortunate how many negative comments are posted on this site now. Everybody is an expert at what they don’t know. I use my old 10-speed chains from the CX bike on my single speed mtb. No extra cost there. And when they stretch further, there is a possibility of chain drop while climbing. It is rare, yes but lightweight frames do flex under load. And any cog that accepts a 10/11 speed chain is 1/2″ pitch by 3/32″ and therefore compatible with any 8/9 speed chain too. Do some homework before jumping to conclusions folks. I think these look great. And I personally think the short freehubs are better than threaded hubs. These are single speed specific too, you know. And in my experience last longer and are easier to maintain than a thread-on freewheel.