Comments on: Shimano Alfine 11 speed quietly announced. http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/ A small, service oriented bike shop in West Newton, MA Wed, 08 Sep 2010 13:07:53 -0400 hourly 1 By: Martin Hartley http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1821 Martin Hartley Wed, 08 Sep 2010 13:07:53 +0000 http://blog.harriscyclery.com/?p=154#comment-1821 At the moment I'm waiting to hear some user feedback. The price at the moment is not unreasonable. It looks to give me a nice spread of gears. I have a Raleigh Twenty frame, which I would like to re-build into a folding/collapsible touring bicycle. I could use one more lower gear, but in reality, if I'm in the low 20's, then I am probably considering using the universal 24" gear (get off and walk - 2-feet get it?) Chainring: 44 Sprocket: 20 Wheel Size: 20" x 1.75" Gears: 22.8" - 29.5" - 33.3" - 38.0" - 43.1" - 49.1" - 56.0" - 63.3" - 72.2" - 81.8" - 93.2" At the moment I’m waiting to hear some user feedback. The price at the moment is not unreasonable. It looks to give me a nice spread of gears. I have a Raleigh Twenty frame, which I would like to re-build into a folding/collapsible touring bicycle. I could use one more lower gear, but in reality, if I’m in the low 20’s, then I am probably considering using the universal 24″ gear (get off and walk – 2-feet get it?)

Chainring: 44
Sprocket: 20
Wheel Size: 20″ x 1.75″

Gears: 22.8″ – 29.5″ – 33.3″ – 38.0″ – 43.1″ – 49.1″ – 56.0″ – 63.3″ – 72.2″ – 81.8″ – 93.2″

]]> By: Alexey http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1785 Alexey Thu, 02 Sep 2010 22:28:16 +0000 http://blog.harriscyclery.com/?p=154#comment-1785 Karl, Their math does add up... or rather: it multiplies correctly. A 13% gear gap means that you multiply the smaller gear ratio by 1.13. Doing the math, (1.13)^7 * (1.17)^2 = 4.11, which is a gear range of 411%. ~a Karl,

Their math does add up… or rather: it multiplies correctly. A 13% gear gap means that you multiply the smaller gear ratio by 1.13. Doing the math, (1.13)^7 * (1.17)^2 = 4.11, which is a gear range of 411%.

~a

]]> By: Samuel Gamester http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1668 Samuel Gamester Wed, 11 Aug 2010 22:45:54 +0000 http://blog.harriscyclery.com/?p=154#comment-1668 Whats not to like? bigger sprockets are more mechanically efficient and last longer. Smaller chainrings give better ground and frame clearance. If you follow the link at the bottom of this page you can see Shimano's recommended chainring/sprocket combinations on the left of the instructions sheet. Whats not to like? bigger sprockets are more mechanically efficient and last longer. Smaller chainrings give better ground and frame clearance. If you follow the link at the bottom of this page you can see Shimano’s recommended chainring/sprocket combinations on the left of the instructions sheet.

]]> By: Mads Jensen http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1646 Mads Jensen Mon, 09 Aug 2010 07:57:56 +0000 http://blog.harriscyclery.com/?p=154#comment-1646 Finally some info on 11-speed on Shimano web: http://techdocs.shimano.com/media/techdocs/content/cycle/SI/SI_37R0A/SI-37R0A-001-ENG_v1_m56577569830713437.pdf I surely hope the mounting of the cassette is less fidgety than that of the 7-speed. Finally some info on 11-speed on Shimano web:

http://techdocs.shimano.com/media/techdocs/content/cycle/SI/SI_37R0A/SI-37R0A-001-ENG_v1_m56577569830713437.pdf

I surely hope the mounting of the cassette is less fidgety than that of the 7-speed.

]]> By: Richard Wood http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1512 Richard Wood Mon, 19 Jul 2010 04:04:19 +0000 http://blog.harriscyclery.com/?p=154#comment-1512 HeReward; Normally a belt drive requires a special frame as one stay or the dropout needs to be split so that the belt can be threaded through. Drive beltws are one piece and only available in a limited number of lengths. This has been pretty well discussed on the Yahoo Geared Hub Bikes group linked to in my signature above. HeReward;

Normally a belt drive requires a special frame as one stay or the dropout needs to be split so that the belt can be threaded through. Drive beltws are one piece and only available in a limited number of lengths.

This has been pretty well discussed on the Yahoo Geared Hub Bikes group linked to in my signature above.

]]> By: HeReward http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1457 HeReward Tue, 06 Jul 2010 12:02:28 +0000 http://blog.harriscyclery.com/?p=154#comment-1457 I just spent $1,800 on a new 2010 Scott Aspect 10 Mountain Bike and wanted a hub, but the guy at shop convinced me they were too heavy and too expensive. he said $4-5,000 and I believed him. I hate being a sucker! I think I'm going to trade up later in the year. Anyone know what a good belt drive would be to use with this? I just spent $1,800 on a new 2010 Scott Aspect 10 Mountain Bike and wanted a hub, but the guy at shop convinced me they were too heavy and too expensive. he said $4-5,000 and I believed him. I hate being a sucker! I think I’m going to trade up later in the year. Anyone know what a good belt drive would be to use with this?

]]> By: Kevin http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1447 Kevin Fri, 02 Jul 2010 14:02:44 +0000 http://blog.harriscyclery.com/?p=154#comment-1447 Jay- We haven't received any more details yet on the new Alfine hubs, I'll be sure to make a post as soon as I hear more about them. Chances are probably good that 36 hole hubs will be available, but I can't weigh in either way about spacing. Jay-
We haven’t received any more details yet on the new Alfine hubs, I’ll be sure to make a post as soon as I hear more about them. Chances are probably good that 36 hole hubs will be available, but I can’t weigh in either way about spacing.

]]> By: Jay Neil http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1444 Jay Neil Thu, 01 Jul 2010 12:29:14 +0000 http://blog.harriscyclery.com/?p=154#comment-1444 I'm new to the IGH scene; but looking to change a classic Trek Cirrus steel 531 with 130mm spacing for an IGH set up. The wheel size is 27" and cantilever brakes. Does the new 11 speed Shimano Alfine come in 36 hole as well as 32 hole versions (rebuild my current wheel)? Can it be narrowed like the 8 speed version from 135 to 130 mm OLD? Or am I limited to the SRAM iMotion 9 which is available in 36h? If this is not the best place to post these questions, please direct me. Thanks. I’m new to the IGH scene; but looking to change a classic Trek Cirrus steel 531 with 130mm spacing for an IGH set up. The wheel size is 27″ and cantilever brakes. Does the new 11 speed Shimano Alfine come in 36 hole as well as 32 hole versions (rebuild my current wheel)? Can it be narrowed like the 8 speed version from 135 to 130 mm OLD? Or am I limited to the SRAM iMotion 9 which is available in 36h?

If this is not the best place to post these questions, please direct me. Thanks.

]]> By: Martin Hartley http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1435 Martin Hartley Mon, 28 Jun 2010 08:34:20 +0000 http://blog.harriscyclery.com/?p=154#comment-1435 The hub seems to have a rather unusually high end, with 10th and 11th gears being 189% and 215% of the direct drive. For practical use in MTB riding, one would have to use an rather small chainring and a rather large sprocket. You'll need something like 40/24 in order to have a useful spread of MTB gears of 22.6 to 92.3 gear inches. This isn't so bad for people riding small-wheeled bicycles. You'll get away with 46/20 and have a useful spread of gears of 23.9 to 97.5 gear inches. The hub seems to have a rather unusually high end, with 10th and 11th gears being 189% and 215% of the direct drive. For practical use in MTB riding, one would have to use an rather small chainring and a rather large sprocket. You’ll need something like 40/24 in order to have a useful spread of MTB gears of 22.6 to 92.3 gear inches. This isn’t so bad for people riding small-wheeled bicycles. You’ll get away with 46/20 and have a useful spread of gears of 23.9 to 97.5 gear inches.

]]> By: Todd http://blog.harriscyclery.com/shimano-alfine-11-speed-quietly-announced/comment-page-1/#comment-1416 Todd Wed, 23 Jun 2010 23:05:09 +0000 http://blog.harriscyclery.com/?p=154#comment-1416 At the North American handmade bike show Shimano had a table set up with their current hubs displayed. When I asked about the Alfine-11, they had zero info, and said that the news release in Europe was a leak more than an announcement. I wrote a paper letter to Shimano North America asking for info, esp. date of availability. No answer. At the North American handmade bike show Shimano had a table set up with their current hubs displayed. When I asked about the Alfine-11, they had zero info, and said that the news release in Europe was a leak more than an announcement. I wrote a paper letter to Shimano North America asking for info, esp. date of availability. No answer.

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