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They're Here! Shimano Alfine SG-S500 Internal Gear Hubs:

 

Designed for Shimano Centerlock Rotors , or you can use an adaptor for standard 6 bolt rotors

.

We have been very well impressed with the Shimano Nexus 8-speed internal gear hubs, and have sold a lot of them, both the basic model and the deluxe "red band" version.

These have been the best-shifting bicycle gear shift system ever, and have a range of gears that is adequate for most applications.

We're excited to announce the new super-deluxe "Alfine" 8-speed, which builds upon the foundation of the Nexus 8. The Alfine version includes several improvemnts:

• Disc brake capability, using Shimano's Center-lock rotors.
• Double roller clutch engagement for smoother, quieter shifting
• Increased efficiency
• Shifting power modulator for smoother shifts

Small Parts are listed on our Shimano Nexus Page

Alfine RapidFire Shifter LD825 $34.95	Nexus 8 Twist Shifter LD822 $24.95
These are the ONLY compatible shifters currently available. Cable and cable anchor assembly included with either model.

Twist Shifters and Drop Handlebars.

The Nexus 8 hub works only with shifters made for it.

All available Nexus shifters are designed to fit straight handlebars with a 7/8" (22.2 mm diameter.) This includes basically all upright or "mountain bike" type handlebars, but does not include drop bars as used on most touring bikes.

There are several ways to get around this limitation however. Probably the best is the HubBub adaptor mount:

LD103 HubBub Bar End Adpaptor $54.95 This is a very nicely made extension that fits into the end of your drop handlebar. It uses the same mounting hardware as Shiman bar-end shifters. The position is quite convenient. If you wish, you can cut the bar itself shorter on this side.

Shimano Europe Alfine Section

Specifications

Over Locknut Dim./OLD

135mm

Axle Length

185mm

Hub Shell Material

Aluminum

Finish

Anodized

Weight

1,590g

Spoke Hole Drillings

32H/36H

Flange Distance

57.3mm

Spoke Hole PCD

92.6mm

Flange Diameter

104.3mm

Flange Width

3.2mm

Sprocket Teeth

*for tensioner use CS-S500 18T,20T SM-GEAR 21T,22T,23T *for w/o tensioner use 16T,18T,19T, 20T,21T,22T,23T

Chain Line

42mm

Dishing Distance

3.1mm

This hub provides the following gear ratios:

8	1.615:1
7	1.419:1
6	1.223:1
5	1:1
4	0.851:1
3	0.748:1
2	0.644:1
1	0.527:1

Sheldon Brown's Internal Gear Calculator for Internal Gear Hubs

Wheel Size	27 inch (nominal) 26 inch (nominal) 700 X 56 / 56-622 700 X 50 / 50-622 700 X 44 / 44-622 700 X 38 / 38-622 700 X 35 / 35-622 700 X 32 / 32-622 700 X 28 / 28-622 700 X 25 / 25-622 700 X 23 / 23-622 700 X 20 / 20-622 Tubular / Wide Tubular / Narrow 27 X 1 3/8 / 35-630 27 X 1 1/4 / 32-630 27 X 1 1/8 / 28-630 27 X 1 / 25-630 26 X 2.35 / 60-559 / MTB 26 X 2.125 / 54-559 / MTB 26 X 1.9 / 47-559 / MTB 26 X 1.5 / 38-559 / MTB 26 X 1.25 / 32-559 / MTB 26 X 1.0 / 25-559 / MTB 650 x 38b / 38-584 650B 650 x 28C / 28-571 / 26" road/tri 650 x 25C / 25-571 / 26" road/tri 650 x 23C / 23-571 / 26" road/tri 26 X 1 3/8 / 35-590 24 inch (nominal) 24 x 1 / 25-520 20 inch (nominal) 20 X 1.75 / 44-406 / BMX 20 X 1 1/4 / 28-451 18 x 1.5 / 40-355 17 x 1 1/4 / 28-369 16 x 1 3/8 / 35-349 16 x 1.5 / 37-305
Crank Length	150 mm 152 mm 155 mm 160 mm 162.5 mm 165 mm 167.5 mm 170 mm 172.5 mm 175 mm 177.5 mm 180 mm 185 mm 190 mm
Gear units	Gain Ratios Gear inches Meters Developement MPH @ 40 RPM MPH @ 60 RPM MPH @ 80 RPM MPH @ 100 RPM MPH @ 120 RPM KPH @ 40 RPM KPH @ 60 RPM KPH @ 80 RPM KPH @ 100 RPM KPH @ 120 RPM
Chainring Size(s)
Rear Sprocket Size
Internal Hub	Shimano Nexus 8-speed Rohloff Speedhub 14-speed Shimano Nexus 7-speed Shimano Nexus 4-speed Shimano Nexus Inter-3 SRAM/Sachs Spectro new-style 7-speed SRAM/Sachs/Torpedo old-style 7-speed SRAM/Sachs/Torpedo 5-speed SRAM/Sachs/Torpedo 3-speed, including 3 x 7 SRAM/Sachs Elan 12-speed Sturmey-Archer 8-speed Sturmey-Archer AB wide-ratio 3-speed w/brake Sturmey-Archer AC close-ratio 3-speed Sturmey-Archer AF close-ratio 4-speed Sturmey-Archer AM medium-ratio 3-speed Sturmey-Archer AG wide-ratio 3-speed w/dyno Sturmey-Archer AG wide-ratio 3-speed w/dyno Sturmey-Archer AR ultra-close-ratio 3-speed Sturmey-Archer ASC fixed close-ratio 3-speed Sturmey-Archer AT3 wide-ratio 3-speed Sturmey-Archer AW wide-ratio 3-speed Sturmey-Archer AWC wide-ratio 3-speed w/coaster brake Sturmey-Archer FB wide-ratio 4-speed w/brake Sturmey-Archer FC close-ratio 4-speed Sturmey-Archer FG wide-ratio 4-speed w/dyno Sturmey-Archer FM medium-ratio 4-speed Sturmey-Archer FM modified to 5-speed Sturmey-Archer FW wide-ratio 4-speed Sturmey-Archer K, KB, KBC, KT, KTC wide-ratio 3-speed Sturmey-Archer KS close-ratio 3-speed Sturmey-Archer KSW medium-ratio 3-speed Sturmey-Archer S3C wide-ratio 3-speed w/coaster Sturmey-Archer SBR wide-ratio 3-speed w/brake Sturmey-Archer S5 5-speed Sturmey-Archer Sprinter 5-speed Sturmey-Archer Sprinter 7-speed Sturmey-Archer SW super-wide-ratio 3-speed Sturmey-Archer T,TB,TBC,TBF,TBFC,TF wide-ratio 2-speed Sturmey-Archer TC close-ratio 2-speed Sturmey-Archer TCW wide-ratio 3-speed w/coaster

Gain Ratios	Gear Inches	Meters Development

Nexus Technical Page

Click here for Shimano Nexus lubricants.

The official Shimano Nexus page

We carry Nexus-equipped bicycles from several manufacturers, including:
Harris Cyclery's Exclusive Bianchi San Jos8
Breezer models with 8-speed, 7-speed, and 3-speed Nexus hubs
Bianchi Milano with the new 8-speed Nexus hub
Come on in and test ride one soon, here or at your local dealer... you're in for a pleasant surprise!

See also my article on Internal Gear Hubs.

New! On-line Gear Calculator for Internally-Geared Hubs

Custom Wheelbuilding Wheels hand-built by Harris Cyclery We build custom wheels, with care and attention to detail. Standard charges:

• $40 each for wheels with 36 or fewer spokes.
• $45 for 40 spoke wheels.
• $50 for 48 spoke wheels.
• $10 for cutting out and prepping a used hub.
• Butted spokes (DT or Wheelsmith) $1.00 each.

We will re-use your old hubs if you wish, but will not use used spokes nor rims.

If you bring in existing wheels to be rebuilt, add $10 per wheel for cutting the old spokes, cleaning and prepping your hub.

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Hubs and Hub Parts Brake   Fixed   Internal-Gear   MTB   Road   1-speed   Tandem				Lights	Pedals	Rims	Saddles & Seatposts
Shifters	Singlespeed Stuff	Stems	Three-Speed Parts	Tandem Parts	Tires, Tubes, etc.	Tools	Wheels

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