SRAM 2019?

[RocketRacing]

Range is good. I have etap 11-32 x 34/50 on my road bike, and the 32-34 is a nice combo for big steep climbs. I won’t be winning any races in that gear, but it is a good “social gear”. The downside is that what goes up, must come down, and on the same descents, i can spin out... not that I am complainig, but more options is not a bad thing.

Progress is good. Lets see if sram can give us the extra gear without a whole new driver system

[TobinHatesYou]

The extra range is mostly enabled by the 10t cog’s near ~9% increase at the top-end, so the XDR freehub will be crucial. There is an outside chance that we see 12spd 11-XXt HyperGlide compatible cassettes, but that means less top-end unless you go 54 or 55t and also less range unless you go with huge pie-plate cogs at the low-end.

[liam7020]

Are you on the SRAM payroll lad? That sounds like complete manufacturers bullsh*te! LOL!!

[TobinHatesYou]

Are you on the SRAM payroll lad? That sounds like complete manufacturers bullsh*te! LOL!!

Have you seen 10t cogs on Shimano MTB cassettes before the new 12spd XTR? Nope. It just wasn’t feasible on HG. Shimano had to come out with the new MicroSpline freehub body, just like SRAM had to come out with XD/XDR.

[liam7020]

That, of course, depends on whether or not you're interested ina 10t cog. Personally I don't give a toss!

[ooo]

possible to make 9-32 10sp cassette (same range as 11-40) on capreo hubs using shimano cogs

[Hexsense]

Just for everyone to see the picture of gear range easily,
Here is a gear comparison between Sram 48/35 +10-28 and Campagnolo 12speed 53/39 +11-32

http://gear-calculator.com/?GR=DERS&KB= ... 2&UF2=2135 (Link might not work in firefox but it work on chrome)
Nearly the same, isn't it? Now the difference is that Sram saves 9 teeth from chainring, and whopping 22 teeth on cassette (1 teeth saving each on first few cog, more on bigger cog, up to 4 teeth per cog). Despite having nearly the same range and progression.

Then another combo, for those that don't care about 11-32 range. Sram 48/35 10-26 and Campagnolo 12speed 11-29. Still nearly the same range and progression with a bit less number of teeth saving but going the same trend.
http://gear-calculator.com/?GR=DERS&KB= ... 9&UF2=2135
Of course, the smaller combo equavalent of 52/36 and 50/34 still missing. I hope they offer 48/32 and 46/30 too.

So XDR enable smaller cog and in turn smaller chainring and cassette for the same gear ratio that weight less.
If 10t is not useful, just drop your chainring size until it become useful.
If you don't care about weight saving, you are in the wrong forum.

No kidding, this is even drive train weight. Which accelerate and decelerate much more than wheel weight. Wheels rotate at pretty consistence speed. Spin up and slow down slowly. Drive train stop completely when you free wheel and accelerate when you start rotating your leg. Some people also vary their pedaling speed throughout the pedaling circle. That's a lot of acceleration and deceleration of some (tiny) mass.

[ericoschmitt]

Why do they have to add useless smaller cogs that add friction and wear faster?! And the gaps between gears are bigger. I already find 11t pointless. I ride 12-29 or 12-25, and have campagnolo because of that! I'm happy that centaur offers 12-32, but I'd happilly have cassettes starting on 13 too.

Even campagnolo starts on 11t only for 12 speed. Why would I want it? I'd either add an 18t cog or a 32t one, starting on 12!

I'm staying with my 3x11 Athena.

[liam7020]

Why do they have to add useless smaller cogs that add friction and wear faster?! And the gaps between gears are bigger. I already find 11t pointless. I ride 12-29 or 12-25, and have campagnolo because of that! I'm happy that centaur offers 12-32, but I'd happilly have cassettes starting on 13 too.

Even campagnolo starts on 11t only for 12 speed. Why would I want it? I'd either add an 18t cog or a 32t one, starting on 12!

Correct on all counts!

[alcatraz]

It looks like the new derailleurs feed the chain to the cassettes so it wraps around more teeth of the sprockets. Maybe that is to help wear and for the chain not to skip.

[Dan Gerous]

Why do they have to add useless smaller cogs that add friction and wear faster?! And the gaps between gears are bigger. I already find 11t pointless. I ride 12-29 or 12-25, and have campagnolo because of that! I'm happy that centaur offers 12-32, but I'd happilly have cassettes starting on 13 too.

Even campagnolo starts on 11t only for 12 speed. Why would I want it? I'd either add an 18t cog or a 32t one, starting on 12!

I'm staying with my 3x11 Athena.

Useless to you, not to everyone, you just don't go fast enough!

Just kidding, there is no gearing range perfect for everyone or for everywhere. Back home I find 52/36 + 11-28 to be great, when I head to the Pyrénées for the summer, I use 50/34 + 11-30 (would go 11-32 if my rear mech allowed it)... I would be fine with a 11-28, I actually don't use the 30t cog much but as a cycling guide, I often need to ride with slower people so having a lower gear allows me to ride with them without pedaling at 35rpm, it's also nice to have it for those odd >200km with >5000m rides... But I do run out of gear very often over there with a 50x11 top gear. Sure I could keep the 52/36 or use 53/39 and 11-32 but then the jumps between gears are starting to be too big. I thought the gaps were too big with 11-28 10-speed, they're good with 11-28 11-speed but I for one, would like a slightly wider total gear range without the bigger jumps the current 11-speed wide ratio cassettes have so 12 speed makes sense to me. Sure I can just coast and get in a tuck by that point, that's what I do, but it's fun to go fast, funner to go faster!

I can understand some people not needing it at all (I don't understand why everyone in Florida are not all on single ring setups for exemple) but, you're not alone.

And people who think their derailleurs are slowing them down because they are less aero? Come on now, pros would make fun of you... I also really doubt 99% percent of people here could feel the difference in efficiency from a 11t cog to a 10t cog, I hope those who think they do have fancy oversize pulley wheels, took off all your bearing seals and use fancy UFO chains and never ever cross chain even a little bit if you think 10t cog will slow you down! It's not like it's a gear most people spend much time on or when a watt or two will make much of a difference, you're either going at 70km/h or something downhill or you're sprinting at >1000watts where one lost watt is 0.1%... And regarding wear, again, you would have to spend a loooooot of time in that 10t cog to wear the chain any faster...

[mattyNor]

I don't understand why people are in Florida

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[2lo8]

I don't understand why people are in Florida

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+1

[Noctiluxx]

I don't understand why people are in Florida

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+1

+2

[ericoschmitt]

Why do they have to add useless smaller cogs that add friction and wear faster?! And the gaps between gears are bigger. I already find 11t pointless. I ride 12-29 or 12-25, and have campagnolo because of that! I'm happy that centaur offers 12-32, but I'd happilly have cassettes starting on 13 too.

Even campagnolo starts on 11t only for 12 speed. Why would I want it? I'd either add an 18t cog or a 32t one, starting on 12!

I'm staying with my 3x11 Athena.

Useless to you, not to everyone, you just don't go fast enough!

Just kidding, there is no gearing range perfect for everyone or for everywhere. Back home I find 52/36 + 11-28 to be great, when I head to the Pyrénées for the summer, I use 50/34 + 11-30 (would go 11-32 if my rear mech allowed it)... I would be fine with a 11-28, I actually don't use the 30t cog much but as a cycling guide, I often need to ride with slower people so having a lower gear allows me to ride with them without pedaling at 35rpm, it's also nice to have it for those odd >200km with >5000m rides... But I do run out of gear very often over there with a 50x11 top gear. Sure I could keep the 52/36 or use 53/39 and 11-32 but then the jumps between gears are starting to be too big. I thought the gaps were too big with 11-28 10-speed, they're good with 11-28 11-speed but I for one, would like a slightly wider total gear range without the bigger jumps the current 11-speed wide ratio cassettes have so 12 speed makes sense to me. Sure I can just coast and get in a tuck by that point, that's what I do, but it's fun to go fast, funner to go faster!

I can understand some people not needing it at all (I don't understand why everyone in Florida are not all on single ring setups for exemple) but, you're not alone.

And people who think their derailleurs are slowing them down because they are less aero? Come on now, pros would make fun of you... I also really doubt 99% percent of people here could feel the difference in efficiency from a 11t cog to a 10t cog, I hope those who think they do have fancy oversize pulley wheels, took off all your bearing seals and use fancy UFO chains and never ever cross chain even a little bit if you think 10t cog will slow you down! It's not like it's a gear most people spend much time on or when a watt or two will make much of a difference, you're either going at 70km/h or something downhill or you're sprinting at >1000watts where one lost watt is 0.1%... And regarding wear, again, you would have to spend a loooooot of time in that 10t cog to wear the chain any faster...

This debate about the usefulness of an 11t has been around since 9s days I think. But...

Well, at 50x11 110rpm you are at some 60kph (not looking at calc now) and any decent cyclist can sprint above 130rpm (thats close to 70kph on 50x11), so really, if you need taller gearing you must be a pro. Going downhill and you will be faster tucking.

Last year my top gear was 50x12 and I never got dropped because of it! Only because of not being fit, and that was on climbs... I usually was one of the fastest descenders, tucked, and I'm light.

Do you realise 50x10 equals 55x11 and 60x12? Thats HUGE. It's pointless even for many pros most of the time.

Merckx rode 52x13 as his top gear, and he would beat the shit out of everyone in this thread on his 9.5kg steel bike on box section rims 32 spokes. Does anyone here needs taller gears than Merckx had? Come on.

10t is total BS for road (not to mention those 9-32 cassettes).

I will keep choosing cassettes starting on 12t for 11s and wont get 12s groupsets while I can't get 12-something. 52x12 is an excelent top gear for me, and 30x29 (or 25, or 32) is an excelent bottom gear for wall-climbing.

Triples will rule the earth again, Jesus said.