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Old 01-11-06, 09:58 PM   #1
mx_599
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Rohloff speedhub

i am sure this has been discussed before, but i wanted current opinions incase there are new members who have something to say.

other than the price, any comments on this hub? i am thinking of building a bike over the course of the spring and fall tuition dispursements. hehehehe i don't think anyone will notice spread out over two.
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Old 01-11-06, 10:16 PM   #2
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When I go FS, I will be running the Rohloff speedhub, it's simply AMAZING.
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Old 01-11-06, 10:38 PM   #3
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Hooboy, I can't resist this thread. Sorry, guys. I LOVE the concept of a Rohloff (except the unsprung weight, of course). They are absolutely gorgeous pieces of hardware. But I just have this severe aversion to paying more for a rear hub than I did for my frame. And since I would just be using it for DH racing, 14 speeds are more than I need.
What I really wish is that one of the more economical planetaries (SRAM Spectro or Shimano Nexus) came as a disk brake model. All they have are freewheel, coaster or roller brake. Dunno if the planetary gears would hold up, but I'd be willing to give it a try.
The option I am toying with is getting the 3-speed internal SRAM Dual-Drive It has the same 135 hub spacing as any normal mtn hub and you could use the cassette carrier to space a single cog along it to get perfect chain line (can you tell I've been thinking about this WAY too much?). I'd keep it laced to another Mammoth rim and only use it for racing. I'm just trying to decide if 3 speeds is enough. With a 40/15 setup it would give you the same gears as 40/20, 40/15 and 40/11. Any thoughts?
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Old 01-12-06, 12:47 AM   #4
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Speedhubs have a huge life span. This has been discussed many times but it is often brought up that there is a big initial price for ditching the derailleur but you make up for it because you need to do less replacements to your drive train. There is less wear!
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Old 01-12-06, 01:49 AM   #5
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it is often brought up that there is a big initial price for ditching the derailleur but you make up for it because you need to do less replacements to your drive train. There is less wear!
Since I'm still running the same STX-RC 8-speed rear drivetrain and RST/Formula rear hub (don't you dare laugh ) that I had 1½ bikes ago (4 DH seasons ago), that is not much of an argument. I'd have to live to 150 to make it pay.
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Old 01-12-06, 02:00 AM   #6
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Since I'm still running the same STX-RC 8-speed rear drivetrain
The deraileur I can see. The chain and cassette - not so much. Unless of course the bike is sitting or getting few miles
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Old 01-12-06, 11:10 AM   #7
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The deraileur I can see. The chain and cassette - not so much. Unless of course the bike is sitting or getting few miles
I wasn't going to bore you with the details. It's just the rear der. and the Mega-Range cassette (the only way I could get a 34t in an 8-speed). I made the weight trade-off (steel gears, etc.) to get the 34t. I like pedalling back uphill. Chain is SRAM. Being an ex-motorcycle guy, I like the idea of master links .
By the way, what do you think of running a SRAM Dual-Drive disk hub? As I stated before, I'd mostly use it just for DH racing. I'm curious if the planetaries and axle would take the abuse. It's not like it's going to be subjected to quite the torque loads of gated racing.
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Old 01-12-06, 12:08 PM   #8
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dminor--

hey...do you have a link to those shimano and sram products you mentioned?? i looked for sram's at the website and didn't see it?? didn't try the shimano site.

thanks
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Old 01-12-06, 12:26 PM   #9
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dminor--hey...do you have a link to those shimano and sram products you mentioned??
They're kind of buried on both sites. On SRAM, you have to look in the Comfort Bike stuff. Here's the link:
http://www.sram.com/en/sram/comfort/...ubcassette.php The pict isn't verry good, because the view of the hub is covered by a cassette. Here's a better picture on the AE Bike site: http://aebike.com/site/page.cfm?PageID=30&SKU=HU2593
For Shimano, there's a Nexus link once you get to the North American Cycling main page: http://bike.shimano.com/catalog/cycl...=1137090196889 As far as I can see, there are no disc brake versions of any Nexus hub (and, unfortunately not SRAM's Spectro line either).

The Dual-Drive requires SRAM's little 'click box' on the end of the axle to activate it, but that's far less hardware hanging out there than a derailleur - - and a person might even be able to fashion a little guard loop or 'skid plate' to protect it.
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Old 01-12-06, 06:53 PM   #10
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If I remember correctly the gearing ratio on the Nexus hub is pretty steep which most people find annoying on a DH bike, close ratio's are what you would want. This was probably my only gripe with the GT it1 when I test rode it. These use a nexus 8speed hub as the gearbox but I am wary of the actual strength of these hubs if you were to put it through proper use (not just mounted safely in a frame but to DH on a wheel with one of these in it). Also if you are using an internal hub you have to use the specific shifter for them. Nexus use an indexing ratio of something stupid like 1:1.87.

Rohloff hubs however can definately take the abuse of being used as a proper hub in a DH wheelset.
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Old 01-13-06, 12:29 AM   #11
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Quote:
Originally Posted by dminor
.
By the way, what do you think of running a SRAM Dual-Drive disk hub? As I stated before, I'd mostly use it just for DH racing. I'm curious if the planetaries and axle would take the abuse. It's not like it's going to be subjected to quite the torque loads of gated racing.
It's engineered as a coffeehouse cruiser hub. That whole deal just feels sketchy to me.
I'd sooner suggest the P5 Cargo hub, but that would mean having to go with a rim brake.
To get what you're really after the only thing you need to know is Rohloff. They've got it down. I keep trying to justify spending the cash, but even though I know it will save me money in the long haul, it's the initial outlay I choke on. Still you get what you pay for with them
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Old 01-13-06, 01:11 AM   #12
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Quote:
Originally Posted by Raiyn
I'd sooner suggest the P5 Cargo hub, but that would mean having to go with a rim brake.
Yeah, too bad there's no disc version. And that side of the hub is too big to use a First Principles rotor adapter on too.
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To get what you're really after the only thing you need to know is Rohloff. They've got it down. I keep trying to justify spending the cash...
$900+ is just too stiff for me. I'd be putting toward a new Yeti 303 frame before I spent it on a silly hub. OK, let's try this: Say I want to run a 40t front chainring; what short-cage road deraiileur will allow me to use the widest-range 8-speed cassette cluster? And what would that cluster be?
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Old 01-13-06, 01:21 AM   #13
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Originally Posted by dminor
OK, let's try this: Say I want to run a 40t front chainring; what short-cage road deraiileur will allow me to use the widest-range 8-speed cassette cluster? And what would that cluster be?
Oy, making me think at this hour!
Running a single chainring you should be able run any road derailieur you'd like as you wouldn't need the chainwrap to compensate like you would on a double or triple setup. You could use a 11-34 like what you have now
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Old 01-13-06, 06:54 AM   #14
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Quote:
Originally Posted by dminor
Yeah, too bad there's no disc version. And that side of the hub is too big to use a First Principles rotor adapter on too.
$900+ is just too stiff for me. I'd be putting toward a new Yeti 303 frame before I spent it on a silly hub. OK, let's try this: Say I want to run a 40t front chainring; what short-cage road deraiileur will allow me to use the widest-range 8-speed cassette cluster? And what would that cluster be?
do you by any chance know what they go for used on ebay? i didn't get a chance to look
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Old 01-13-06, 07:11 AM   #15
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I wouldn't want to have to rebuild this sucker:

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Old 01-13-06, 07:57 AM   #16
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Nice shot there Gastro. Theres a guy in my town that lets them go for around $990AU from time to time, but I dont see one in my future for some time.
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Old 01-13-06, 10:38 AM   #17
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I wouldn't want to have to rebuild this sucker
Shucks, a little 50cc motorcycle has a more complex gearbox than that. That's a pretty piece, but it still seems to me that you're paying for a 6/10 caché and 4/10 engineeering. I'd say they've banked heavily on the penchant for cyclists to pay way too much for 50-year-old technology.
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Old 01-13-06, 10:47 AM   #18
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Shucks, a little 50cc motorcycle has a more complex gearbox than that. That's a pretty piece, but it still seems to me that you're paying for a 6/10 caché and 4/10 engineeering. I'd say they've banked heavily on the penchant for cyclists to pay way too much for 50-year-old technology.
the price is way over the top but if there is no competition then they can charge what they like- if you want one you have to pay
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Old 01-13-06, 10:56 AM   #19
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I want one! I'd even take a nexus hub...and I'm thinking of it for the xtracycle.
It's be nice to be able to shift under load, eh?
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Old 01-13-06, 11:58 AM   #20
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thanks for the pic gastro...i am collecting info on this hub. i will archive the pic you posted and add it to my pdf article i found.

dminor...do you really think it is totally antiquated and over priced? i really am considering it for spring/fall. i don't think i would ever get a used one though. i would just go with new
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Old 01-13-06, 01:17 PM   #21
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Quote:
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dminor...do you really think it is totally antiquated and over priced? i really am considering it for spring/fall. i don't think i would ever get a used one though. i would just go with new
Don't take it too personally; hey; if you've got the dough to spring for it, go for it

I'm just saying that this fine German company has not invented anything new; they've just repackaged planetary gearbox technology that has been around since the Model T. And let's not forget Sturmey-Archer hubs. But I don't think they're antiquated at all - - in fact I love the concept, especially if they could help me get rid of another old-tech throwback (derailleurs) from my DH bike. But yes, I do think they are horribly overpriced. Royalflash hit the nail on the head: they are the only game in town, so they can charge what the traffic will bear.

Now, real innovation would be if someone invented a nearly-frictionless CVT drivetrain for bikes with a 'gear' selector.
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Old 01-13-06, 01:43 PM   #22
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Quote:
Originally Posted by dminor
Don't take it too personally; hey; if you've got the dough to spring for it, go for it

I'm just saying that this fine German company has not invented anything new; they've just repackaged planetary gearbox technology that has been around since the Model T. And let's not forget Sturmey-Archer hubs. But I don't think they're antiquated at all - - in fact I love the concept, especially if they could help me get rid of another old-tech throwback (derailleurs) from my DH bike. But yes, I do think they are horribly overpriced. Royalflash hit the nail on the head: they are the only game in town, so they can charge what the traffic will bear.

Now, real innovation would be if someone invented a nearly-frictionless CVT drivetrain for bikes with a 'gear' selector.
i would just hate to get one and then in a couple yrs other companies finally start making comparable items that might be better
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Old 01-13-06, 02:31 PM   #23
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The Rohloff speedhub is in a class of its own

If you can afford it and are looking to do some technical Shore style riding then this is the hub for you.

When you are serveral feet in the air on a 3 inch skinnie and have to bail you stand a good chance of tearing
your rear derailer right off if you fall wrong. With the Rohloff speedhub this wont happen and you can change gears with
a quick twist while stationary.

also the range of gears feals almost infinite
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Old 01-13-06, 02:37 PM   #24
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silk, I presume you've ridden one - how is the engagement feel? Nearly instantaneous like a King or Hadley, or is there some pedal lag?
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Old 01-13-06, 02:55 PM   #25
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Quote:
Originally Posted by mx_599
i would just hate to get one and then in a couple yrs other companies finally start making comparable items that might be better
I doubt that anybody else would make something better. More economical, maybe, but not better. Don't hold your breath for the others to do it at all, really. I think both of the 'Big S'es will keep the planetaries confined to their city/comfort bike lines. I had an interesting e-mail exchange with a SRAM tech a year or so ago, and he said there are no plans to offer the Ps or Spectros in a disc brake version.
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