Coefficient RR

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KarlGLS
Posts: 107
Joined: Sat Mar 11, 2023 9:11 pm
Location: in the drops

by KarlGLS

Hexsense wrote:
FB_IMG_1649651921399.jpg
Overall, I like it. Feels good especially when holding the top.

But there are some nuances I wish the next revision would improve.
1) Sprint shifter slot.
Normally, I set sprint shifter at 45 degree angle between pointing sideway inward and pointing to the front. It'd align near my thumb tip. However, the cut out on this bar put flat surface directly to the inside which enforce the sprint shifter alignment to point inward as well. And sprint shifter button now rest near the base of my thumb. I wish the flat side cut out rotate more forward by 45 degree.
2) the up/down slope isn't extreme enough. Setting bar height where I'd be comfortable in drop means the top is still too low to ride narrow stance aero top without my knee hitting my elbow. I could raise bar high enough to create gap between my elbow and knee when using top, but that cause drop to be too tall too. Deeper drop or more top slope could solve it.
3) set-up with correct reach at hood, the center top is still too short reach to hold as pseudo TT bar for extended period of time. Wish the back sweep is more or drop curve have less reach, so that I can use longer stem to push front center joint further away.
4) coming from 36cm bar, 38cm feels a bit wide. But I guess there aren't much demand for 36cm bar. So it's understandable but still wish for 36cm size.
Asked the team at coefficient for a 36 too ; not on their schedule yet but they work on an adjustable computer mount
simply blabla-ing

spartacus
Posts: 1049
Joined: Mon Apr 04, 2011 6:53 pm

by spartacus

Hexsense wrote:
Mon Apr 11, 2022 5:40 am


4) coming from 36cm bar, 38cm feels a bit wide. But I guess there aren't much demand for 36cm bar. So it's understandable but still wish for 36cm size.
Wild to me they don't sell these in 36 (or even smaller to reach UCI minimum), not to mention the 38 is actually 40cm c-c at the drops which is like 7cm(!!) wider c-c than the UCI minimum lol. I know they have the middle grip area but for me these are some wide azz bars.

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User avatar
KarlGLS
Posts: 107
Joined: Sat Mar 11, 2023 9:11 pm
Location: in the drops

by KarlGLS

spartacus wrote:
Hexsense wrote:
Mon Apr 11, 2022 5:40 am


4) coming from 36cm bar, 38cm feels a bit wide. But I guess there aren't much demand for 36cm bar. So it's understandable but still wish for 36cm size.
Wild to me they don't sell these in 36 (or even smaller to reach UCI minimum), not to mention the 38 is actually 40cm c-c at the drops which is like 7cm(!!) wider c-c than the UCI minimum lol. I know they have the middle grip area but for me these are some wide azz bars.
That’s exactly what I mentioned with them. Aero bar but can’t provide smaller than 38… get rid of the 42/44 and bring us the 36 and smaller !
simply blabla-ing

renoracing
Posts: 139
Joined: Tue Mar 27, 2012 2:48 am

by renoracing

I'll echo the narrower sentiments... If they offered a 36cm version, I'd be up for giving them a try...

glepore
Posts: 1408
Joined: Thu Mar 28, 2013 4:42 pm
Location: Virginia USA

by glepore

i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
Cysco Ti custom Campy SR mechanical (6.9);Berk custom (5.6); Serotta Ottrott(6.8) ; Anvil Custom steel Etap;1996 Colnago Technos Record

BenCousins
Posts: 1366
Joined: Thu Apr 23, 2015 11:46 am

by BenCousins

glepore wrote:
Thu Mar 16, 2023 3:54 pm
i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
That's sloping upwards like a gravel bar. Take a look at the other pictures.

glepore
Posts: 1408
Joined: Thu Mar 28, 2013 4:42 pm
Location: Virginia USA

by glepore

BenCousins wrote:
Thu Mar 16, 2023 4:10 pm
glepore wrote:
Thu Mar 16, 2023 3:54 pm
i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
That's sloping upwards like a gravel bar. Take a look at the other pictures.
Don't think so. They also have the sprint shifter indents.



Image


Image
Cysco Ti custom Campy SR mechanical (6.9);Berk custom (5.6); Serotta Ottrott(6.8) ; Anvil Custom steel Etap;1996 Colnago Technos Record

LanceLegstrong
Posts: 1145
Joined: Fri Sep 13, 2019 1:35 pm

by LanceLegstrong

glepore wrote:
Thu Mar 16, 2023 3:54 pm
i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
I'm seeing $400 USD. which isn't cheap but not that bad.
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BenCousins
Posts: 1366
Joined: Thu Apr 23, 2015 11:46 am

by BenCousins

glepore wrote:
Thu Mar 16, 2023 4:20 pm
BenCousins wrote:
Thu Mar 16, 2023 4:10 pm
glepore wrote:
Thu Mar 16, 2023 3:54 pm
i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
That's sloping upwards like a gravel bar. Take a look at the other pictures.
Don't think so. They also have the sprint shifter indents.
I can clearly see an upward sloping bar.

TobinHatesYou
Posts: 12456
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

BenCousins wrote:
Thu Mar 16, 2023 4:24 pm

I can clearly see an upward sloping bar.

So what are you trying to say? It swopes in the same directions as the Coefficient AR and RR.

jih
Posts: 596
Joined: Fri Jan 29, 2016 12:54 pm

by jih

glepore wrote:
Thu Mar 16, 2023 3:54 pm
i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
This looks a lot like Coefficient's gravel bar.

I like the look of the RR. Only thing stopping me is the drop of 127mm is 4mm more than I currently have with ErgoNovas at 123mm.

Looking at this picture...

Image

... it seems like you could get the same effect wiht a lot less material in the bars if they made stems longer than standard (so 130mm to 170mm range) and moved the stem/bar clamping area forwards to be inside that big hole on the front.

TobinHatesYou
Posts: 12456
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

jih wrote:
Thu Mar 16, 2023 5:17 pm

... it seems like you could get the same effect wiht a lot less material in the bars if they made stems longer than standard (so 130mm to 170mm range) and moved the stem/bar clamping area forwards to be inside that big hole on the front.

The hole+integrated computer mount adds very aero and currently UCI legal hand position.

https://www.instagram.com/p/CRrghVQsPId/
Last edited by TobinHatesYou on Thu Mar 16, 2023 5:46 pm, edited 1 time in total.

RDY
Posts: 2354
Joined: Thu Jul 30, 2020 10:31 pm

by RDY

glepore wrote:
Thu Mar 16, 2023 4:20 pm
BenCousins wrote:
Thu Mar 16, 2023 4:10 pm
glepore wrote:
Thu Mar 16, 2023 3:54 pm
i want to try these, but not at $600 usd.
However, it appears there is a bar very similar to their ar available on ali...https://www.aliexpress.us/item/32568040 ... 00908290_8
That's sloping upwards like a gravel bar. Take a look at the other pictures.
Don't think so. They also have the sprint shifter indents.



Image


Image
This is a Deda Gera 'copy' - but totally different numbers. There are other bars on Ali which are influenced by the Coefficient bar.

TobinHatesYou
Posts: 12456
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

RDY wrote:
Thu Mar 16, 2023 5:45 pm

This is a Deda Gera 'copy' - but totally different numbers. There are other bars on Ali which are influenced by the Coefficient bar.

You guys are aware the Coefficient AR exists and predates everything else except the Eyropro which appeared around the same time, right?

The AliExpress bar is clearly inspired by the Coefficient AR, right down to the thumb indents.
Last edited by TobinHatesYou on Thu Mar 16, 2023 6:00 pm, edited 2 times in total.

by Weenie


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glepore
Posts: 1408
Joined: Thu Mar 28, 2013 4:42 pm
Location: Virginia USA

by glepore

TobinHatesYou wrote:
Thu Mar 16, 2023 5:52 pm
RDY wrote:
Thu Mar 16, 2023 5:45 pm

This is a Deda Gera 'copy' - but totally different numbers. There are other bars on Ali which are influenced by the Coefficient bar.

You guys are aware the Coefficient AR exists and predates everything else, right?

The AliExpress bar is clearly inspired by the AR, right down to the thumb indents.
I agree, inspired by the ar-slightly more simple shape on the tops, but clearly a "clone", down to the indents and the very slight flare. Pointless for me as its out of stock in the smallest size.
If anyone can point me to an ali bar that looks like the rr, I'm all ears...
Cysco Ti custom Campy SR mechanical (6.9);Berk custom (5.6); Serotta Ottrott(6.8) ; Anvil Custom steel Etap;1996 Colnago Technos Record

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