Polygons used to be really value for money, until they decided to raise their prices. For the current price, most people will prefer to look at other brands.

Some of you probably seen this before. Quite an old frame, but components replaced since the last time I posted this bike

guarantee under 7kg this one

First incarnation was actually Ultegra, taken from my previous Polygon frame. Switched to Chorus, then finally SR 2 years ago when the 11speeds was on clearance sale.

I actually prefer campy, but having said that, I'll likely only buy campy if got clearance sale lor.

Even when comparing DA9000 with Chorus, Chorus has better precision, and tuning hardly ever goes off. Although DA is lighter and smoother to shift compared to Campy.

Got. I know of somebody using Nokon with Campy

Throw bike in and fish out again for an automatic upgrade?

Continentals does have this problem previously. I remembered a stone flying from the ground because somebody rolled over it hitting somebody else's sidewall and cutting the GP4000 sidewall. I recalled you mentioned that this happened to you before too.

But I started using them again from the GP4000S2 and now the GP5000, never had any issues with the sidewalls anymore

Yeah. never happened to me, but I've seen it happen to others on a few rides before. but Continental fixed the problem with the GP4000S2 and after.

Vittoria Corsa Graphene? I remember the early batches of these had manufacturing issues. Seen a few cases where you get a nice clean up to 1 inch split on the sidewall, especially after hitting a pothole. Later batches had this fixed though.

On the topic of the cycling computers, does anybody use the Garmin speed sensor? As in the one that attaches to your hub? Do you get problems with frequent disconnections? Tried on both front and back hubs, also the same problem

Used the cadence sensor (attach to crank), and the 2 in one speed+cadence sensor (attach to chain stay) before, and never had this problem with these 2

This post has been edited by malleus: Jul 14 2020, 12:36 AM

Never had this problem with speed sensors that goes onto your chainstay and a magnet on your spokes before, so this is kind of annoying. Looks like I'll go and dig out my old speed/cadence sensor and use that instead, although it don't look as tidy.

I find that proper fitting gloves makes more of a difference than bar tape. 2XU and Rudy Project gloves fits best on my hands (skinny fingers), but they also both now discontinued their gloves

otherwise other gloves I tried I do notice my hands can still slide inside the gloves, and its that abrasion that causes the problems.

It mainly comes down to how well the spoke is tensions when the wheel's built. Went through 3 pairs of custom wheels so far, only one of them had a spoke break, and that's due to it the tension being too high.

eh? is that the price for the CK hubs these days?

you referring to spokes + hubs? or entire wheelset?

ah ok, I remember the hubs without spokes are roughly 2.8k the last I checked

there's even a term for it, drillium

the theory is supposed to be that narrow super high pressure tires causes a lot of bumping around when you're on the actual road itself, and this contributes a lot to power loss.

I reduced to 90 PSI from 100 on a 25c (my rims are 21, so the tires actually look like 28), and noticed that there's less effort to maintain speed

That's what I used to think too, pumping up to higher pressure means rolls better, but apparently it isn't that simple.

I tried a lower pressure (93 psi @ 25c on a 21mm rim) and to my surprise, I actually find it easier to maintain higher speeds. Went to google more about this, apparently the explanation is that power loss occurs whenever you are bumping around when using tires with too high pressure too. It can depend a lot on the road conditions. If you're riding on a surface as smooth as an indoor track, then probably won't get the same bumpiness as you would for normal road riding.

Definitely do not want a too low PSI, but also don't want to just pump all the way to the max too.