If Red shifts good and is half a pound lighter it would seem to be better?

I have 7800 with 7900 crank and cassette but would consider Red on a new bike given the weight advantage.

@ that "moment", Andy sucked. It's the engine, right?
He's lucky Al "gave" him a stage to help him save a little face.
So either Andy sucked or SRAM sucked. Couldn't have been neither.
(Yes, Al rode SRAM too, but he had "special" top-secret SRAM. )

Viva Contador!

Is it more than a 7 or 8 ounce difference?

I had the same dilemma before I built my new-to-me bike. Rode an Ultegra setup, and at one point, I went to grab some brake and the lever tried to run away from my finger. I didn't like that possibility, as I set my stuff up with the right lever being the front brake for ease, speed and max force braking if necessary. That setup also matches my motorcycle. Went with SRAM. Campy looks like it might be even better, maybe next time....,

Actually, Andy was riding a modified setup, which some have speculated added to the problem. In all reality it was mostly likely user error. IIRC, he tried to make a cross chain front shift under power. That's asking for trouble with any mechanical system.

Short torsoed riders should not overlook the significant difference in the brake hood reach. The new Shimano brake hoods have the longest reach of any brand and that should require a shorter stem. I wouldn't consider Shimano for that reason. Of course I wouldn't consider SRAM either.

I totally agree, and I like SRAM. But these guys play up their stuff in the Tour. So when the random crap happens, and it fails, I think it's fair for them to lose all their "the pros ride it" points for a year .

I like sram personally, just feels nicer in my hands. I have 105 5700 and dont like how cheap the levers feel or 6700 for that matter, but it works and is equal to its rival cousins. Ive played with DA and red and Like the feel of red, but the quietness of DA. So it comes down to Personal preference.

I've read many more account of Sram shift levers breaking off during the last few years than I have of Shimano shift lever design failures. Levers shouldn't break off with normal (no crashes) use.

https://forums.roadbikereview.com/sho...d.php?t=187519

https://weightweenies.starbike.com/fo...hp?f=3&t=60779

https://forums.roadbikereview.com/sho...d.php?t=187519

I currently ride 6600, and it has been amazingly boring in it's reliability I've briefly ridden Sram and like the way it feels/shifts etc., but would not be willing to sacrifice reliability, even for half a pound of weight. A close friend of mine JUST YESTERDAY had his '10 Sram Force lever break off at the exact same point as the pictures in the above threads. He's been training all winter for race season, has his first race next weekend, and only has the one bike. Bummer for him. He rode 7700 before "upgrading" to Force last year, and is now having to consider going back after these failed after a single season of riding/racing. I applaud Sram for the creation of a legitimate alternative, but I won't consider them to be on par until they can make their weight and repair-ability improvements without sacrificing reliability. My $.02.

*edit* To be fair, I don't think I've heard of any Sram "Red" shifters having this problem, so I suppose the relevance of this post is lost in a DA vs. RED thread.

-Jeremy

One of 7900's targets is to allow you to use all 20 gears, and trim-free, too. Cross-chain all you want.

According to this table, the difference between 7900 and Red is 183 grams, unless you have BB30. About one ounce of that would be the Red Powerdome cassette, which actually is pretty innovative. 7900's crankset is from an entirely different technological planet than Red, however... no need for special, heavier, stiffer "sprinter's chainrings" on Dura-Ace, they come standard And from the chart, you'll notice DA's crank is lighter than Red, too.

Working at the LBS, I can also testify to Shimano's warranty department. All I have to do is pick up the phone and tell them "yeah, this customer's right-hand DA lever buzzes on rough chipseal," and they will not only send out a replacement that day, they'll replace both of them to make sure. Including new cables. Just on my word.

The last time we tried warrantying a SRAM shifter, they acted like they were doing us a big favor. "Send it in, and we'll fix it and send it back." And they did... after about three weeks. Good thing we had a spare lever to lend to the customer in the meanwhile.

By about 3 potato chips..That's a great way to make a decision...

If you are going down that path..... 7900 has never won the TDF.

When did I say you couldn't cross chain? I just said a front derailleur cross chain shift under power is problematic. The cross chain aspect probably had little to do with it, but it certainly didn't help the situation.

I have a friend who owns a shop,caters for lots of bikes many of them race at a high level.He uses campy and has always thought it was the best.Two years ago he crashed and wrecked his bike on a cycling holiday.His replacement bike had DA 7800 after about a week he was so very impressed with dura ace.

He is not so impressed with sram,lots of folks have come back to him with difficulties with sram.

Red

I just like the action and feel more comfortable with brake levers functioning solely as brake levers. The newer 1091R chain made the shifts much more crisp and quieter as well.

Rum.

True. But it hasn't "lost" a TdF.

Incorrect. Second place is first loser.

I agree.... I installed 7900 with some trepidation after hearing about so many people having a hard time getting it to shift correctly. I read the Shimano instruction guide and made sure my hanger was straight and viola!! It shifted like butter from the very first try. I think some people try to get by with cheaper shift cables or 7800 cables. The 7900 cables are key to good shift quality.
Oh year 7900 over Red for me due to its smoothness. It just feels so refined and precise.

Red. Even uncle PCAD wants Red.

Would it be completely fredly for me to upgrade my Look 566 105 bike to Sram red?

That's very comforting to hear.
I'm drooling after those 7900 shifters & brakes.

No. You do what "you" want with your money and enjoy it!