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Recumbent What IS that thing?! Recumbents may be odd looking, but they have many advantages over a "wedgie" bicycle. Discuss the in's and out's recumbent lifestyle in the recumbent forum.

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Old 09-05-09, 12:17 PM   #1
charly17201
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10-speed rear

Has anyone looked at the 10-speed rears for their 'bent? I've been thinking about it, but don't know if the benefits would be worth the cost?
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Old 09-05-09, 05:11 PM   #2
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Depends on how you shift; most bents can't use road brifters and twist grip and thumb shifters are
not available AFAIK in 10spd so you have to use barcons. Large diameter (32-34t) cassettes in
10spd are a bit sparse but the tandemistas have made them available. SRAM's new ATB 10spd might
help but is expensive in the controls, and they are made for 2 CW, not triples so you have to keep
your old triple L control. Finally the 10spd are a bit flimsier, give an extra cog in the 16-17-18
range, depending on the cassette which is useful in the mid teen to mid 20s mph range. Most people
hardly notice, but a few sensitive types do. Flimsier means a bit shorter lived in cassette and chain
over 9spds.
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Old 09-05-09, 07:30 PM   #3
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I think I'd rather drop from 9 down to 8 or even 7 in the rear so I could use a heavier chain. My wife has already broken her chain on her Catrike Road, and it didn't seem to be having any adjustment issues. The LBS I took it to in order to be sure did not find any problems.
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Old 09-05-09, 07:54 PM   #4
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Shimano SL-R770 10-Speed Shifters or SRAM Flat-Bar Double Tap 10-speed Shifters (1:1 ratio) are your only 10-speed shifter choices at this point. You have to decide whether or not the change over and component capability/matching is worth the cost.
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Old 09-05-09, 08:11 PM   #5
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Is there any advantage other than a potential boost in sales? Even though I'm a tad fussy about riding in a "feels right" gear, 27 seem like plenty.
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Old 09-05-09, 08:55 PM   #6
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Quote:
Originally Posted by sch View Post
Depends on how you shift; most bents can't use road brifters and twist grip and thumb shifters are
not available AFAIK in 10spd so you have to use barcons. Large diameter (32-34t) cassettes in
10spd are a bit sparse but the tandemistas have made them available. SRAM's new ATB 10spd might
help but is expensive in the controls, and they are made for 2 CW, not triples so you have to keep
your old triple L control. Finally the 10spd are a bit flimsier, give an extra cog in the 16-17-18
range, depending on the cassette which is useful in the mid teen to mid 20s mph range. Most people
hardly notice, but a few sensitive types do. Flimsier means a bit shorter lived in cassette and chain
over 9spds.
Quote:
Originally Posted by Sci-Fi View Post
Shimano SL-R770 10-Speed Shifters or SRAM Flat-Bar Double Tap 10-speed Shifters (1:1 ratio) are your only 10-speed shifter choices at this point. You have to decide whether or not the change over and component capability/matching is worth the cost.
Alright.... I'd get to spend even more $$$ on new shifters.

Okay, yeah, I'd planned on the new shifters in the equation. I have twist-grip now for the triple front and 9-speed rear. And the way I shift.... well I'm constantly shifting and I do use all of my gears and combinations. Quite a bit of climbing and drops on the route to work every day.

The one thing I do really like with my current setup is that except for the 3/4 gear changing the front ring is a 2-gear change in the rear so I know exactly where I'll be at any given change. The 3/4 gear is about 1-1/2 gear change. Going to a 10-speed rear I'd probably have a learning curve again.
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Old 09-05-09, 08:57 PM   #7
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I have no issues with 9-speed stuff, and from what I've heard about 10-speed chains, they have such a short life on the bike that you almost don't need to lube them.
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Old 09-06-09, 06:47 AM   #8
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I have no issues with 9-speed stuff, and from what I've heard about 10-speed chains, they have such a short life on the bike that you almost don't need to lube them.
"And the new ten-speed drive train saves you the trouble and mess of chain lubrication. No laborious waxing, dipping, dripping or spraying for the full life of the chain." <G>
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Old 09-06-09, 07:46 AM   #9
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One other aspect of the SRAM ATB 10spd is that it is a package, high end group so you sort have to
use their RD as well. Prolly work arounds but not many doing this at present to you are on your own
mixing the shifter and other RD. SRAM is very proud of their new ATB group, priced about like the Red
road group. At some point the hybrids will make the jump to 10spd and this will result in more flat bar
10spd shifters, but this is years away, and there really is not that much advantage in wide range
clusters in 10spd over 9spd, which is partly why SRAM elected to go to a double CW set up in their ATB 10spd.
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Old 09-06-09, 08:43 AM   #10
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Is there any advantage other than a potential boost in sales? .
Stimulating the economy is good for all of us.
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Old 09-06-09, 01:15 PM   #11
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Quote:
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I have no issues with 9-speed stuff, and from what I've heard about 10-speed chains, they have such a short life on the bike that you almost don't need to lube them.
I'm getting ready to replace the DA 10 speed chain on my VK2 and it has well over 6,000 miles and measures 0.6 on a Park chain tool. Theoretically, I could probably run it another 1,000 or so.
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Old 09-06-09, 10:02 PM   #12
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Quote:
Originally Posted by Sci-Fi View Post
Shimano SL-R770 10-Speed Shifters or SRAM Flat-Bar Double Tap 10-speed Shifters (1:1 ratio) are your only 10-speed shifter choices at this point. You have to decide whether or not the change over and component capability/matching is worth the cost.
Don't forget Campy!
http://harriscyclery.net/page.cfm?pa...ils&sku=LD9826
Of course, that would require a complete drivetrain- more bruising to the credit card.
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Old 09-06-09, 10:04 PM   #13
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At some point the hybrids will make the jump to 10spd and this will result in more flat bar 10spd shifters, but this is years away,
10-speed flat bar shifters, available now:
http://harriscyclery.net/page.cfm?pa...ils&sku=LD7013
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Old 09-07-09, 07:04 AM   #14
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Good point, but all three flat bar 10spd mentioned are high end stuff at present and to some degree package deals where you have to use the RD as well. I still feel it will be several yrs before Ultegra or 105
level shifters become available at reasonable prices. The appeal of 10spd flat bar stuff is low
enough that the secondary market will be slow to develop as well (takeoffs). People interested in
hybrids are not into $3-4k bikes that equipment like this is put on. I suspect Jtek could supply
adapters for the Campy shifters and maybe the SRAM ones as well.
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Old 09-07-09, 10:13 PM   #15
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Good point, but all three flat bar 10spd mentioned are high end stuff at present and to some degree package deals where you have to use the RD as well.
Huh? Shimano shifters work with Shimano derailleurs. It's the same with Campy and SRAM. If you want a 10-speed cassette, you use a 10-speed shifter- the derailleur doesn't care.
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Old 09-07-09, 10:38 PM   #16
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haven't had any problems with my 10 speed stuff for several thousand miles, andI guarantee you I put more torque on a chain han most, but that being said other than the weight difference, there's no real point to having it. Get a 9 speed unless you're going super light like my carbent.
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Old 09-13-09, 04:18 PM   #17
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Okay, the decision on whether to get a 10-speed rear has jumped to the forefront. After really looking at my rear hub today after some shifting problems.... I do have to replace it - soon. Thanks for the info on the 10-speeds, but at the prices I've found I'll be going for a good 9-speed instead.

Now, does anyone have a good recommendation there (as I start my search). Obviously I knew when I bought my bent I'd need to upgrade some components. I just never thought I'd wear a hub out this quickly - under 2 years. I've had bikes (Puegot and a Trek) for over 5 years each with thousands more miles on them and I never had to replace a rear hub. Come to think of it, I do still have the Trek wheel set with a decent 8-speed hub on it.

Just had a thought and went out and checked..... Yes, I have enough room to put the 700c wheel on the bent. But the brakes won't work. I'll have to see if I can find a set-up for the brake that will work. Then I can have multiple setups...... hmmm (smoke coming out of ears).

Last edited by charly17201; 09-13-09 at 04:39 PM. Reason: More info
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Old 09-13-09, 09:44 PM   #18
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Okay, the decision on whether to get a 10-speed rear has jumped to the forefront. After really looking at my rear hub today after some shifting problems.... I do have to replace it - soon. Thanks for the info on the 10-speeds, but at the prices I've found I'll be going for a good 9-speed instead.
Why would you replace the hub if you're having shifting issues? If things are worn, you'll probably need to replace the chain (mine last a year or two) and the cassette (mine last 2 to 3 chains). How old is the bike anyway?

When I've replaced chains and cassettes, shifting issues tend to disappear. It's part of my normal winterization protocol: replace cables and brake shoes, tune up in general, clean or replace drivetrain parts as needed.
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Old 09-14-09, 07:57 PM   #19
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Sorry, I mis-spoke. I have to replace the cassette now, not the hub.
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