DA 10sp vs 9sp

dig dug said:

Is Dura Ace 10speed that much better than DA 9speed?
brakes, levers, derailleurs, etc ??

I'm building up a new frame and wondering if it's worth spending the extra
money for new DA or just transfer my DA 9sp which has ~1200miles on it.
thanks

Depends how you define "better". It does give you one more cog. The
ergonomics of the shifters are slightly improved. The bottom bracket
design is improved. The crank is stiffer. But it's gonna cost you well
over $1,000 in "extra money" to upgrade the whole group. In my book,
that's a big drawback, considering your 9-sp stuff is barely broken in.
On the other hand, some 9-speed replacement parts are becoming scarce.
I just bought a new frameset myself, and transferred my old DA parts to
it. I didn't even consider upgrading. My 7400-series Dura Ace cranks,
bottom bracket, pedals, and brake calipers are 15 years old, and the
remaining "new" 9 sp. drivetrain parts have 10,000 miles on them.

dig dug said:

Is Dura Ace 10speed that much better than DA 9speed?
brakes, levers, derailleurs, etc ??

I'm building up a new frame and wondering if it's worth spending the extra
money for new DA or just transfer my DA 9sp which has ~1200miles on it.
thanks

DEFINITELY you should go with DA10, and please sell me your DA9 stuff🙂

Kidding aside, apart from an extra cog, the only real difference is the
new crank design. You could buy the crank separately if you just have
to have the latest and greatest. Unless you are some super elite
racer, there's really no point.

10 speed cassettes, chains, and chainrings are substantially more
expensive than 9 speed stuff, so you'd not only be paying for the
upgrade, you have to pay more for the consumables too.

dig dug said:

Is Dura Ace 10speed that much better than DA 9speed?
brakes, levers, derailleurs, etc ??

I'm building up a new frame and wondering if it's worth spending the extra
money for new DA or just transfer my DA 9sp which has ~1200miles on it.
thanks

DA 9s levers and probably cogsets will become scarce. 9s STI has shown
to be not that reliable. 10s 'seems' better, in terms of
reliability(have warrantied 3 tho). If the '9s' stuff works, just use
it. You will not see a huge performance advantage of having an extra
cog.

Quoted message said:

10 speed cassettes, chains, and chainrings are substantially more
expensive than 9 speed stuff, so you'd not only be paying for the
upgrade, you have to pay more for the consumables too.

I noticed that small parts are currently very expensive for new DA10 as
well. If the alu freehub body of your 7800 hub gets chewed up despite the
higher splines, the replacement freehub body costs 145 euro at a popular
mail order place in europe. The complete rear hub of the same vintage is
138 -- or to put it another way, you can buy a spare freehub body for the
cost of a complete hub plus some euros to get them to take off the body.

Similarly, the three-largest-cog spidered assemblies to replace parts of a
cassette cost about 85-90% of the entire cassette.

Jasper

Jasper Janssen said:

Quoted message said:

10 speed cassettes, chains, and chainrings are substantially more
expensive than 9 speed stuff, so you'd not only be paying for the
upgrade, you have to pay more for the consumables too.

I noticed that small parts are currently very expensive for new DA10 as
well. If the alu freehub body of your 7800 hub gets chewed up despite the
higher splines, the replacement freehub body costs 145 euro at a popular
mail order place in europe. The complete rear hub of the same vintage is
138 -- or to put it another way, you can buy a spare freehub body for the
cost of a complete hub plus some euros to get them to take off the body.

Similarly, the three-largest-cog spidered assemblies to replace parts of a
cassette cost about 85-90% of the entire cassette.

Jasper

And the front hub cone is attached to the axle, so if you cook it, it
is a axle/cone replacement for about $45..

One thing I would definitely consider keeping is the DA 9 hubs. Yes,
its heavier than DA 10, but DA 9 hubs have the proven, stronger design
(right/drive side bearings are outboard) and can take 8, 9 and 10 cogs.

In contrast, the newer DA 10 hubs may be a bit lighter, but its not as
strong and may not be as durable (only time will tell that).

One thing I would definitely consider keeping is the DA 9 hubs. Yes,
its heavier than DA 10, but DA 9 hubs have the proven, stronger design
(right/drive side bearings are outboard) and can take 8, 9 and 10 cogs.

In contrast, the newer DA 10 hubs may be a bit lighter, but its not as
strong and may not be as durable (only time will tell that).

In article <[email hidden]>, [email hidden] says...

Quoted message said:

Is Dura Ace 10speed that much better than DA 9speed?
brakes, levers, derailleurs, etc ??

Define better? It is a bit lighter and you may like the shape of the new STI
levers, otherwise you probably could not tell by feel alone.

Quoted message said:

I'm building up a new frame and wondering if it's worth spending the extra
money for new DA or just transfer my DA 9sp which has ~1200miles on it.
thanks

Unless you have cash burning a hole in your wallet, I would stick to 9spd.
--------------
Alex

"9s STI has shown to be not that reliable."

The opposite is true: 9-speed STI has shown to be very reliable.

"Qui si parla Campagnolo-www.vecchios.com" <[email hidden]> wrote in
message news:[email hidden]...

Quoted message said:

dig dug said:

Is Dura Ace 10speed that much better than DA 9speed?
brakes, levers, derailleurs, etc ??

I'm building up a new frame and wondering if it's worth spending the
extra
money for new DA or just transfer my DA 9sp which has ~1200miles on it.
thanks

DA 9s levers and probably cogsets will become scarce. 9s STI has shown
to be not that reliable. 10s 'seems' better, in terms of
reliability(have warrantied 3 tho). If the '9s' stuff works, just use
it. You will not see a huge performance advantage of having an extra
cog.

NedTexTri said:

"9s STI has shown to be not that reliable."

The opposite is true: 9-speed STI has shown to be very reliable.

Quoted message said:

cog.

Not in my experience or the experience of many here as well as the
shops in Boulder. About 25-30 warranties of 9s STI consistently for the
last 5 years(been open that long). Many failure out of the box(a 7703
and R600 recently). Even shimano changed the STI design when they went
to 10s to reduce the failure rater, there words.

Not sure where you get the
"The opposite is true: 9-speed STI has shown to be very reliable."

I have both 9 speed and 10 speed DA bikes. Of the two, the 10 speed
shifters have much nicer action, a stiffer crank/bb, and more powerful
brakes. I couldn't care less about the extra gear but the 10 speed
stuff is clearly nicer in most functional aspects. Prices are crazy
though unless you dig out deals on ebay and places like this.

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

I have both 9 speed and 10 speed DA bikes. Of the two, the 10 speed
shifters have much nicer action, a stiffer crank/bb, and more powerful
brakes. I couldn't care less about the extra gear but the 10 speed
stuff is clearly nicer in most functional aspects. Prices are crazy
though unless you dig out deals on ebay and places like this.

Prices should come down. When 9spd stuff first came out, it was quite pricey
and then the price dropped. Although, in the past year the price of 9spd
stuff jumped quite a bit. It might be due to Shimano getting tighter control
on their attempt to do price fixing.
--------------
Alex