Aerodynamics / Aerodynamic Cost / Aero parts

What is the aero approved chainguide?

edit: I presume. http://www.aero-coach.co.uk/store/product/aerocoach-affix-chain-guide

I have one of these: https://www.aliexpress.com/item/BCD130-Chainring-Circle-Narrow-Wide-1x-System-50T-52T-54T-56T-58T-60T-Crank-Driveline/32848630132.html?ws_ab_test=searchweb0_0,searchweb201602_1_10065_10344_10068_10130_10324_10342_10547_10325_10343_10340_10548_10341_10192_10190_10084_10617_10616_10083_10618_10615_10307_10301_10303_10313_10059_10184_10534_100031_10103_441_10624_442_10623_10622_10621_10620_10142,searchweb201603_6,ppcSwitch_7&algo_expid=5a2c02a6-a682-4d40-bc7b-13715e91b780-17&algo_pvid=5a2c02a6-a682-4d40-bc7b-13715e91b780&priceBeautifyAB=1

But in 110bcd

Only ever had 1 chain drop with an old/worn chain - never any with new chains. Not using a chainguide either.

Can you link the 110bcd one? My p2m is 110 so that would be good.

Are we talking about the same thing? They don't make the old ones and I'm supposed to pay £200 for new ones? The normal ones were ~£50 weren't they?

I was looking at them, yeah. Guy was gonna build me a custom one so I probably should email him about that.

The cleat is £50. But is pointless without the pedal £200.

Do you need special chain for NW chainrings?

What difference does the pedal make? I thought the point was that the cleat is smoothed off rather than just a block.

EDIT: I see, it has a dimpled base too. I'm not going to get that, just the cleats.

http://www.speedplay.com/index.cfm?fuseaction=home.zerowalkablecleat

http://www.ero-sports.com/2017/index.php/tested-speedplay-zero-aero-pedals

https://www.aliexpress.com/item/Chainring-BCD110-Narrow-Wide-Circle-1x-System-crank-5-bolts-46T-50t-58t-60T/32835187186.html?ws_ab_test=searchweb0_0,searchweb201602_1_10065_10344_10068_10130_10324_10342_10547_10325_10343_10340_10548_10341_10192_10190_10084_10617_10616_10083_10618_10615_10307_10301_10303_10313_10059_10184_10534_100031_10103_441_10624_442_10623_10622_10621_10620_10142,searchweb201603_6,ppcSwitch_7&algo_expid=3d75a29c-6541-49f7-aec3-1d4aadd87b36-18&algo_pvid=3d75a29c-6541-49f7-aec3-1d4aadd87b36&priceBeautifyAB=1

Nope - I just use a regular 11 speed chain, although I think Sram do make a 1x specific chain

Do you need special chain for NW chainrings?

Yeah, they're super rare. I have a spare one - can do a special price for you though. £69.99 posted.

thanks, did it take 20-40 days to come? Never ordered from ali.

Yeah.

@danb - did you get hit by any customs? Also, does it look like the decals acetone off?

about a week or so iirc

While we're on the subject of single chainrings...Single ring chainring bolts with double-hex.
I have them for double ring setup, but want to get rid of the spacers when in full tart mode.

Anything out there?

Yeah, they're super rare. I have a spare set - can do a special price for you though. £69.99 posted.

no customs for me, decals are etched I think - acetone didnt seem to have any effect

That's good. At a possible 4W saving over my di2 front mech it's good.
Though I'll still have the derailleur hanger.

£55/4 = 13.75 £/W
£160/5? = 32 £/W

Better than a tririg at £160.

Hah!

Buy both. £££££££££££££££££££££££££££££££££££££

I give up, they want me to upload photo id and card id. No thanks.,

I'm sure you can buy the equivalent through eBay/Amazon.

Not that I can see.

Fuck that.

What do you need? 130bcd or 110bcd 58T? What cranks do you have?