A Rear Derailleur Designed for Time Trial

patrixchen

MicroShift Aerodynamic Arsis Rear Derailleur

Although it is not time someone does it, they have made some interesting improvements other then simply covering it up to prevent the wind from going in.
They actually expose half of the pulleys that spin along the wind direction to let the wind does some accelerating for the rider. The explanation makes sense, but I wonder if the difference is significant. I guess it is better than nothing. I don't question the accuracy of the derailleurs though because they were also used by Cofidis in the Tour de France.
They announced it on their facebook page.
https://www.facebook.com/MicroSHIFTCycling
What do you guys think :?:

Grill

PLANT.

Microshift could only ever dream of being as smooth as 105, and Dura Ace puts it to shame. Considering most TT frames use a kinked chainstay to take the rear mech out of turbulent air I can't see this having any real impact. That and Di2 TT groupset is the absolute shizzle.

patrixchen

Thanks for the thoughts. My personal experience actually says otherwise. I had riden with microShift, Ultegra, and 105. I would say the Arsis derailleurs are as smooth as Ultegra (putting shiftings aside). This brand will dominate the market for sure if the Arsis is comparable to Shimano DA given that the HUGE price difference. They are just not made with the same level of costs.
Most of the top TT frames I know have straight chain stays. Maybe let me know which ones are "kinked." Finger pointing will be great.
Whether or not the chain stay is shaped, I believe it can not deflect the wind that is running into the derailleur cage. The bottom pulley is quite far away from the chain stay vertically.

DavidJB

Obvious advertisement is obvious.

Grill

It won't dominate as the shifting is crap. You think it's as good as Ultegra because you have a vested interest in Microshift, but even if it were as good whatever turbulent air is left on the rear mech is for all intensive purposes inconsequential. What will dominate is Di2 as soon as they release an Ultegra level TT groupset (you can piece one but it would be cheaper as a package).

Both the Graal and Plasma use kinked chainstays.

patrixchen

DavidJB wrote:

Obvious advertisement is obvious.

Well, I am new to the forum. Thought something fresh could get me some posts. Didn't know people are so aggressive here.

It is a shame to see a good company not getting attention. I wonder why I have read so many extreme opinions about their shiftings. Some said they shift really well (like my case), and some call them microsh*t. Many UCI continental teams in the US and Europe are sponsored by microShift. How can they go to races if their derailleurs shift like crap? Maybe someone didn't setup their components right? :roll:

imposter2.0

I like Microshift kit - good quality, reliable and works well. Not sure why there appears to be so much hostility to it.

ugo.santalucia

I wish someone came out with a new construction design and not just a CAD curvy take on a design patented 65 years ago

napoleond

It sounds like Arses. So I was out from the off. Same reason I won't buy mavic r-sys. Although they are actually really good.

napoleond

patrixchen wrote:

DavidJB wrote:

Obvious advertisement is obvious.

Well, I am new to the forum. Thought something fresh could get me some posts. Didn't know people are so aggressive here.

It is a shame to see a good company not getting attention. I wonder why I have read so many extreme opinions about their shiftings. Some said they shift really well (like my case), and some call them microsh*t. Many UCI continental teams in the US and Europe are sponsored by microShift. How can they go to races if their derailleurs shift like crap? Maybe someone didn't setup their components right? :roll:

Professional teams will use whatever sponsorship they can get...

Grill

patrixchen wrote:

DavidJB wrote:

Obvious advertisement is obvious.

Well, I am new to the forum. Thought something fresh could get me some posts. Didn't know people are so aggressive here.

It is a shame to see a good company not getting attention. I wonder why I have read so many extreme opinions about their shiftings. Some said they shift really well (like my case), and some call them microsh*t. Many UCI continental teams in the US and Europe are sponsored by microShift. How can they go to races if their derailleurs shift like crap? Maybe someone didn't setup their components right? :roll:

It strikes me as odd that the first thing you would post (keeping in mind you joined almost 2 years ago) is an aero rear mech in a forum that really doesn't care about TTing. This might be of interest on TTF, TriTalk, Slowtwitch, etc., but most of the TT interest on here extends to clip-ons and that's about it.

As far as sponsoring small teams, the big 3 have the big teams and Microshift doesn't have the cash necessary to break into that market so that's all that's left. Confidas has not been a major team since 2009 (2008?) so that point is moot. It might be a fine budget option for some, but tried and true holds appeal for most (and DA mechs shift like butter). Even as a budget option I wouldn't use MS as the shifters are incredibly clumsy with winter mitts or numb hands.

patrixchen

Grill: Not sure when I joined is related to this topic, but I think I joined and left it there. Sorry for posting on the wrong forum, but it is "Road General" right? Also, it's Cofidis .

NapoleanD: I would think teams would get whatever free they can get for components like saddles and handlebars, but shifters and derailleurs can actually affect their race results big time. Would they really put their hard training into such risks? Arses and Boner scared people off. :oops: They should make improvements on the names instead of the mechanisms first.

Grill

At the end of the day pro cycling is a business and the teams will operate to that end. Not everything is free, even for the likes of Sky, and they still pay for quite a lot even if they have heavily subsidized deals.

I find it ironic that your contention as to why they don't use MS is because their results would go south...

napoleond

Hmmm, are Microshift planting numerous shills?

viewtopic.php?t=12910045&p=18191334

rolf_f

NapoleonD wrote:

Hmmm, are Microshift planting numerous shills?

viewtopic.php?t=12910045&p=18191334

It's the latest internet subliminal advertising technique - you try to irritate people into buying your product. Works for me - if I see anymore of these shills I'll be so annoyed with Microshift I'll buy an entire groupset!

Grill

Looks like it. That guy is in fact sponsored by Microshift according to his blog.

LegendLust

Grill wrote:

At the end of the day pro cycling is a business and the teams will operate to that end. Not everything is free, even for the likes of Sky, and they still pay for quite a lot even if they have heavily subsidized deals.

I find it ironic that your contention as to why they don't use MS is because their results would go south...

What exactly do pro teams pay for?

StorckSpeed

I'm genuinely interested in this post cause I use both Microshift and Ultegra. I use Microshift on my Commuter cause I built the bike myself and it was much, much cheaper.
My summary would be that Microshift kit is really easy to set up and once set up it just works. Never/ever had any issues with it ever. It looks and feels good on the bike, but gear changes sound positive (for positive read clunky). And the gear cables can't be hidden under the Handlebar tape so not as slick looking.
Recently changed my Ultegra rear shifter and had loads of problems with it, yes gear changes are slick when it's all lined up but I'm currently have to adjust it every ride, mid ride. Hopefully this will settle down but it's soured my opinion - I really just want it to work.
I agree with NapoleanD about the name - needs some work.

lawrences

ugo.santalucia wrote:

I wish someone came out with a new construction design and not just a CAD curvy take on a design patented 65 years ago

Innovation in cycling is banned by UCI rules.

lawrences

Also this carben shell isn't exactly a brand new idea.
http://www.raltech.co.uk/Prod_8-Transmission.html

What's better is you can retro fit that one and you can use it with a decent derailleur. So you can be a poser and have good shifting.

wellbeloved747

THis is pretty good, a lot better than micro shift!

http://www.visiontechusa.com/products/5 ... DERAILLEUR

wingguy

patrixchen wrote:

Thanks for the thoughts. My personal experience actually says otherwise. I had riden with microShift, Ultegra, and 105. I would say the Arsis derailleurs are as smooth as Ultegra (putting shiftings aside).

Putting shifting aside? It's a mech - WTF else does it do but shift?

jameses

I think he means the action of the shifters isn't a smooth.

Grill

wellbeloved747 wrote:

THis is pretty good, a lot better than micro shift!

http://www.visiontechusa.com/products/5 ... DERAILLEUR

Indeed, and yet no one uses it. Just goes to show how low on the aero priority list the rear mech is. Domination? Hardly.

meesterbond

I guess you really are into marginal gains territory when you look at making your rear mech more aero. Given that there's a foot 18" in front of it disturbing the airflow, I'd love to see just how many watts shrouding the pulleys in carbon will claims to save. My guess is that it's on a par with having a nice, close shave on the day of the race.