Shimano Nexus und Alfine Acht-Gang-Naben: Unterschied zwischen den Versionen

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* [https://web.archive.org/web/20130925001938/http://www.shimano.com/publish/content/global_cycle/en/us/index/tech_support/tech_tips.download.-Par50lparsys-0015-downloadFile.html/08%29%20Hub%20Dimensions.pdf Shimanos Mutternabstanstabelle für Nexus Naben (englisch/PDF - altes Dokument von 2013)]
* [https://web.archive.org/web/20130925001938/http://www.shimano.com/publish/content/global_cycle/en/us/index/tech_support/tech_tips.download.-Par50lparsys-0015-downloadFile.html/08%29%20Hub%20Dimensions.pdf Shimanos Mutternabstanstabelle für Nexus Naben (englisch/PDF - altes Dokument von 2013)]
* [[Das 1x1 der Shimano Rollerbrake]]
* [[Das 1x1 der Shimano Rollerbrake]]
* [https://si.shimano.com Shimanos Handbücher und Technische Informationen (mehrsprachig auch auf Deutsch)]
* [https://si.shimano.com Shimanos Handbücher und Technische Dokumente (mehrsprachig auch auf Deutsch)]
* [https://web.archive.org/web/20131207135659/http://www.shimano.com/publish/content/global_cycle/en/us/index/tech_support/tech_tips.html Shimano Techniktipps, Aufbau und Funktion, Fehlerbehebungsanleitungen, usw. (englisch, alte Seiten aus dem Jahr 2013)]
* [https://web.archive.org/web/20131207135659/http://www.shimano.com/publish/content/global_cycle/en/us/index/tech_support/tech_tips.html Shimano Techniktipps, Aufbau und Funktion, Fehlerbehebungsanleitungen, usw. (englisch, alte Seiten aus dem Jahr 2013)]
* [http://rideyourbike.com/ Aaron's Bicycle Repair, Seattle, Washington, USA - spezialisiert auf Nabenschaltungen (englisch)]
* [http://rideyourbike.com/ Aaron's Bicycle Repair, Seattle, Washington, USA - spezialisiert auf Nabenschaltungen (englisch)]

Version vom 20. März 2019, 08:04 Uhr

Dieser Artikel bezieht sich ausschließlich auf Shimano Achtgangnabenschaltungen. Es gibt einen allgmeineren Artikel auf dieser Seite, der sich generell über Technische Informationen zu Nexus und Alfine Drei-, Vier-, Sieben-, Acht- und Elfgangnaben auslässt. Insbesondere werden folgende Tehmenbereiche abgedeckt:

Schnittmodell einer Nexus Nabenschaltung

Weiterhin gibt es auf diesen Seiten noch allgemeinere Artikel zu folgenden Themen:

Es ist sicherlich sinnvoll, sich auch mit diesen Artikeln begleitend zu diesem zu beschäftigen. Für detaillierte Hinweise zu Montage von Ritzeln und dem Finden der richtigen Überstzungsbreite kann man sich im Abschnitt Ritzel und kettenblätter auswählen im allgemeinen Artikel zu Nabenschaltungen informieren.

Werbung:

Übersetzungsbandbreiten

Hinter Nexus verbirgt sich eine ganze Familie an Bauteilen, von denen die Nexus Inter 8 Achtgangnabenschaltung eine ist. Die Alfine Achtgangnabe ist ein sehr ähnliches, höherwertiges Modell, das auch eine Scheibenbremsenaufnahme hat.

Die Gesamtebandbreite der Shimano Achtgangnaben ist 307%. Die Abstufung der Gänge ist etwas unregelmäßig:

Übersetzung 0,527 0,644 0,748 0,851 1,000 1,223 1,419 1,615
Abstufung 22,3% 16,0% 13,9% 17,5% 22,3% 16,0% 13,9%

Im Vergleich hat die Nexus Siebengangnabe eine Bandbreite von 244% und die Abstufungen sind etwas gleichmäßiger:

Übersetzung 0,632 0,741 0,843 0,989 1,145 1,335 1,545
Abstufung 17,3% 13,8% 17,3% 15,8% 16,6% 15,8%
Siehe auch

Wann muss eine Nabe repariert werden?

Die Nexus und Alfine Achtgangnaben sind robuster als zumindest die älteren Siebenagang-Modelle. Aber auch sie haben bekannte Fehlerquellen und auch bekannte Methoden, diesen Fehlern vorzubeugen.

Aaron Goss, von Aaron's Bicycle Repair, berichtet:

Ein gelegentliches Klappern bei einer Shimano Achtgangnabe ist normal. Es handelt sich dabei um das rotierenden Sonnenrad, das in die Achsensperrklinken einklinkt. Sogar wenn man sehr vorsichtig pedaliert hört man das Geräusch bzw. kann das spüren, es ist nur weniger laut. Je härter man während des Schaltvorgangs oder kurz danach pedaliert, desto lauter wird das Geräusch. das Geräusch verändert sich mit zunehmendem Alter der Nabe. Komplettes Reinigen und Schmieren stellt normalerweise die Funktion wie im Neuzustand wieder her. Dennoch kann man über einen längeren Gebrauch der Nabe eine leichte Änderung des Geräuschs erwarten.

Manchmal kann die Schaltfeder auf der Achse schwach werden oder die Buchse, die die Sperrklinken anhebt, kann verklemmen, wenn sie verschleißt. Das kann man beheben, indem man die Achseneinheit tauscht oder die Nabe grunderneuert.

Man sollte darauf acht geben, dass man die Kraft auf die Pedale etwas reduziert, wenn man schaltet. Wenn man Kraft auf eine nur teilweise eingeklinkte Sperrklinke gibt, kann diese beschädigt werden. Stoßlasten können auch andere Teile des Achsaufbaus beschädigen. Auf der Webseite von Aaron werden Bilder von Achsen gezeigt, die typische Defekte aufweisen. Er empfiehlt zudem, bergauf nicht im Stehen zu fahren, sondern herunterzuschalten und zu spinnen.

Der wahrscheinlich häufigste Fehler wird durch mangelnde Schmierung hervorgerufen, so dass die Nabe durch Wasser und Schmutz kontaminiert wird.

Montage und Umbauanleitungen

Verlinkung zu Montage- und Umbauanleitungen folgen später in diesem Abschnitt. An dieser Stelle fangen wir mit allgemeineren Informationen an.

Die Nexus Achtgang-Naben haben normalerweise ab Werk einen Mutternabstand von 132 bis 135 mm. Siehe auch Shimanos Mutternabstanstabelle für Nexus Naben. Man kann diesen Abstand beim Nexus Rollerbrake/Freilauf-Modell auf 126mm reduzieren, indem man die Rollerbrake weglässt und dünnere Kontermuttern einsetzt. Dazu findet man mehr im Artikel [Das 1x1 der Shimano Rollerbrake]]. das funktioniert nicht bei den Rücktrittbremsen- oder Scheibenbremsenmodellen und auch nicht bei den Alfine Naben.

The internal mechanism of these hubs is complicated, and the usual repair is to replace the mechanism in its entirety. Shimano indicates little compatibility with hub shells of different models -- see the last two pages of this document -- but the internal mechanism can usually be replaced with a newer version as long as the hub is in the same series (with or without coaster brake; same number of roller clutches -- also be aware of other differences which may affect the design of the shell). See this Shimano document for description of some internal differences. You'll find details about interchangeability if you keep reading this page...

Shimano sells the axle assembly only as a unit and does not provide rebuilding instructions for it -- but you might disassemble it either by mistake or to cannibalize parts. Rebuilding instructions for the axle assembly are available on the Web site of Aaron's Bicycle Repair.

The right-hand hub bearing cup is vulnerable to damage from water contamination. Factory lubrication is inadequate, and better lubrication is advisable -- even with a new hub -- also, to make later cleaning and rebuilding easier.

The right-hand bearing cup is listed as a replaceable part in some parts lists. The old one would have to be extracted from the shell and a new one pressed in. If you succeed with this, please send advice, because that repair can save a wheel!

Do not lubricate the cassette joint (cable attachment parts): see advice in the Nexus technical article.

Basic models have a ratchet and pawls at the left side of the internal mechanism, and a roller clutch in the middle. Premium models have two or three roller clutches rather than only the one. These make only a very minor improvement in efficiency but are quieter than pawls and ratchets, and engage more quickly when resuming pedaling or changing gears. Coaster-brake models have at most one roller clutch.

A red band on the shell identifies a Nexus hub with needle-bearing pinions, for higher efficiency. The lower efficiency of 4th gear compared with the direct-drive 5th gear is noticeable on Nexus 8-speeds with plain-bearing pinions. Needle-bearing and plain-bearing pinions can be identified by their different appearance even in a fully-assembled gear-carrier unit. . plain-bearing pinions needle-bearing pinions

The SG-8R20, SG-8R22 and SG-8R31 have plain bearings; the SG-8R25, SG-8R27 and SG-8R45, needle bearings. Among models with a roller clutch at the left side, the SG-8R30, SG-8R31, SG-8R35 and SG-C6000 have plain bearings; the SG-8R36, SG-8R55, SG-8R56, SG-C6010 and SG-C6060, needle bearings. All Alfine hubs has roller-bearing pinions

A drag spring raises additional issues, and is even used in some models without coaster brakes, to improve engagement of roller clutches. Reader Bruce Dance indicates:

Drag springThe Alfine SG-S500-based models (hubs and wheelsets) have an 'A' and a 'B' version. The 'A' versions are 'two-roller' internals, i.e. they use a pawl drive on the right-hand side (in 1-4) and the main (body center) roller clutch is preloaded by a drag spring that is set into the hub shell (as also found found in most of the coaster brake versions as well as Nexus hubs with pawl drive e.g., SG-8R25, SG-8R27).

(The image at the left shows the drag spring as it slips into the hub shell. The part number for the drag spring is the same for the Alfine as for some coaster brake hubs).

A difference in the SG-S500-A hubs (and some Nexus models) is that the roller retainer is castellated (has points which protrude to the left to engage the drag spring) whereas the Nexus SG-8R25, SG-8R27 (Rollerbrake/brakeless also, later coaster-brake and Alfine) hubs have no castellations on the roller retainer. Instead, there are protrusions on the carrier unit. The castellations, when present, are easily damaged.

A parts list for the SG-S500 'A' version formerly on the Paul Lange site (now in the Internet Archive) helpfully indicates compatibility with some Nexus 8 hub variants.

There is considerable compatibility between shells and internals provided the number of roller clutches is the same. However whilst you can usually fit a tension-spring preload clutch internal into one that was originally fitted with a drag spring, you do need to remove the drag spring. If you try to fit a drag-spring preload clutch internal into a hub shell that wasn't originally fitted with one, there usually is no place to fit the drag spring, and the centre clutch won't work reliably, perhaps at all.

Nexus and Alfine axlesWhile the axle assemblies are mostly identical, a section of the left end of the Alfine axle shown, as well as others, is fatter to withstand the bending moment from the optional disc brake, as shown in the image at the right (courtesy Aaron's Bike Repair). The Alfine left bearing cone threads onto the wider part of the axle. The Alfine requires a wider overlocknut distance than the Nexus without Rollerbrake. There are several different left-bearing-cone part numbers. Mix and match at your own risk.

The Rollerbrake and coaster brake are weatherproof, but drag slightly when not engaged, so if efficiency is a concern, avoid them. They also overheat when used on long downhill runs. We don't know for sure whether any coaster-brake model has needle-bearing pinions, but it appears not.

For all Nexus and Alfine 8-speed hubs except the S7000 series Alfine hubs, the cable is loosest in the lowest gear. The S7000 series is the opposite, and the cassette joint and axle assemblies are significantly different.

Bruce Dance sends the following warning:

It is very easy for parts (pawls or balls) to come adrift during assembly. For example commonly a ball (or balls) can come adrift from the ring bearing, either during assembly, or even in service (if the bearing adjustment slackens). This very often results in destruction of the hub internal, especially in the single or dual-roller hubs with a pawl-drive in the RHS, because the balls can easily get into where the pawls sit and then break them.

I therefore advise anyone working on these hubs to assemble the internal into the hub shell without the sprocket and the dust cover, and to be sure that all the balls are still present, and that the cone adjustment is pretty much done before the covers are refitted. Similarly if the hub has a pawl drive on the LHS (for gear 1 and 5), the internal ought to be rotated backwards as it is installed, else pawls may be dislodged.

I have seen one hub in which a roller came adrift (presumably during the factory assembly, since they cannot easily come out in service) and this smashed the hub shell to pieces. Kind of ugly.

Shimano has information on most but not all 8-speed models. These hubs have gone through several minor design changes, resulting in new model numbers and parts incompatibilities. Hubs parts numbers start with SG but there are also other parts listed, including brakes and shift levers. globeThese pages are available in multiple languages, with a language list box at the upper right corner of the screen.

  • Alfine cable-shifted models (click on buttons for different Alfine series)
  • Alfine DI2 electrically-shifting hubs
  • Inter-8 (Nexus)
  • C6000 (a newer Nexus series)

Several Shimano dealer's manuals offer information on installation, adjustment and maintenance of newer hubs:

  • For the SG-7051 series Alfine hubs
  • For the SG-7000 series Alfine hubs
  • For electrical-shifting SG-S505 Alfine and SG-8R60 and SG-C6060 series Nexus hubs
  • Sprocket installation, wheel installation, cable shifting for the SG-8C31, SG-8R31, SG-8R36, SG-8R60, SG-C6000, SG-C6010 and SG-C6060 series Nexus hubs.

Model numbers are of the form

  • SG-S7xxx , for example, SG-S7000 for newer Alfine (disc brake) hubs.
  • SG-S5xx for older Alfine hubs
  • SG-C6xxx for newer Nexus hubs. These may have a Rollerbrake fitting, coaster brake or possibly threading for a band brake, depending on the individual model.
  • SG-8Rxx for older Nexus freewheeling/Rollerbrake hubs. The first digit after the "R" represents the series, reflecting the number of roller clutches and whether the hub has cable shifting or electrical shifting. The greatest compatibility is within each series.
  • SG-8Cxx for older Nexus coaster-brake models

Shimano made information sheets available individually for earlier hubs. The tables below list hubs in each series individually in order from newest to oldest, describing their differences, linking to information from various sources. The right-hand column holds links to available information. Dealer's manuals with information commont to many hubs areomitted. Shimano has provided rebuilding instructions for only one model, though others are similar.

To find which parts from newer models fit older ones, open the search function in your browser to look on this page for instances of an older hub's model number. Compatibility may cascade to yet another hub or hubs. At the small-parts level, there is much more interchangeability than is shown. Parts for some older models may no longer be available.

There is some interchangeability between Alfine and Nexus models. When a model number in the interchangeability column is in italics, the entire internal assembly is compatible.

Siehe auch

Alfine 8-Gang (Scheibenbremse/Bremsenlose) Modelle

Model Features Documentation MU/Cassette Joint Interchangeability SG-S7051-8 Electrical (Di2) shifting. Mostly compatible with SG-7001-8 but axle assembly and right-hand cone assembly are different.

Parts list, exploded drawing, manuals MU-S705 SG-7001-8 SG-S7001-8 Uses CJ-7000 cassette joint with cable entry above axle.

Parts list, exploded drawing, manuals CJ-S7000 SG-7000, SM-7000 SG-C6000-8D SG-S7000-8 and SM-S7000 Mostly compatible with S501 but axle assembly and cassette joint are different. Parts list, exploded drawing, manuals CJ-S7000 SG-S501 SG-S505 Electrical (Di2) shifting. Most parts compatible with S501. Parts list, exploded drawing, manuals MU-S705 SG-S501 SG-S705 (11-speed) SG-S501 Three roller clutches, fully-compatible with S500. Parts list, exploded drawing Installation instructions CJ-8S20 SG-S500

SG-S500 Two roller clutches (A type); three (B type). The A type has a drag spring and castellated roller-clutch assembly. See comments by Bruce Dance.)

Parts list, exploded drawing Installation instructions CJ-8S20 A type: SG-8R20 SR-8R25 B type: A type, SG-8R35, SG-8R30 WH-S501-8D 8-Speed rear wheel; three roller clutches Parts list, exploded drawing, servicing instructions CJ-8S20

WH-S500-8D (A type, B type), SG-S500 (B type) WH-S501-V-8D 8-Speed rear wheel; three roller clutches Parts list, exploded drawing CJ-8S20 WH-S500-V-8D (A type, B type), SG-8R35 WH-S500-8D 8-Speed rear wheel; two (A type) or three (B type) roller clutches. The A type has a drag spring and castellated roller-clutch assembly. See comments by Bruce Dance.) Parts list, exploded drawing (B type) A type: see SG-S500 Installation instructions CJ-8S20 WH-S500-V-8D (A type, B type), SG-8R35 WH-S500-V-8D 8-Speed rear wheel; two (A type) or three (B type) roller clutches. The A type has a drag spring and castellated roller-clutch assembly. See comments by Bruce Dance.)

Parts list, exploded drawing A type: see SG-S500 Installation instructions CJ-8S20 WH-S500-V-8D (A type), SG-8R35

Nexus 8-Gang (Freilauf/Rollerbrake) Modelle

Model Features Documentation MU/Cassette Joint Interchangeability SG-C6061-8R, SG-6061-8V Electrical shifting, three roller clutches, Rollerbrake Parts list, exploded drawing, manuals MU-S705

SG-C6060-8R SG-C6010-8R SG-C6061-8D Electrical shifting, three roller clutches, Shell appears to have Centerlock disc rotor fitting Esploded drawign, parts list, manuals MU-S705 SG-C6060-8D SG-C6060-8R SG-6060-8V Electrical shifting, three roller clutches, Rollerbrake/brakeless Parts list, exploded drawing, manuals MU-S705 SG-C6010-8R SG-C6000-8R

SG-C6060-8D Electrical shifting, three roller clutches, Shell appears to be for band brake (?)/brakeless Parts list, exploded drawing, manuals MU-S705

SG-C6060-8R SG-C6000-8D SG-S505 SG-C6011-8R, SG-C6011-8V Three roller clutches, Rollerbrake/brakeless. Parts lists, exploded drawings, manuals CJ-8S20 SG-C6010-8R SG-C6000-8R SG-C6000-8V SG-C6010-8R, SG-6010-8V Three roller clutches, Rollerbrake/brakeless. Parts lists, exploded drawings, manuals CJ-8S20 SG-8R36 SG-8R31 SG-C6001-8D Three roller clutches, Band brake (? -- none shown in exploded drawing)/brakeless. Parts lists, exploded drawings, manuals CJ-8S20

SG-C6000-8D SG-C6001-8R, SG-6001-8V Three roller clutches, Rollerbrake/brakeless. Entirely compatible with SG-6000-8R, SG-6000-8V and SG-6010-8R. Parts lists, exploded drawings, manuals CJ-8S20

SG-C6000-8R SG-C6000-8V SG-C6010-8R SG-C6000-8D Three roller clutches, Band brake (? -- none shown in exploded drawing)/brakeless. Parts lists, exploded drawings, manuals CJ-8S20

SG-C6000-8R SG-C6000-8V SG-S7000-8 SG-C6000-8R, SG-6000-8V Three roller clutches, Rollerbrake/brakeless. Parts lists, exploded drawings, manuals CJ-8S20 SG-8R36 SG-8R31 SG-8R60, SR-8R60-VS Electrical shifting. Three roller clutches, Rollerbrake/brakeless Parts lists, exploded drawings, manuals MU-S705 No information SG-8R56 Electrical shifting. Three roller clutches, Rollerbrake/brakeless Parts lists, exploded drawings, manuals Installation instructions Installation of right-hand dustcap B MU-8S40 SG-8R55 SG-8R55 Three roller clutches, Rollerbrake/brakeless, electrical shifting Parts lists, exploded drawings Installation of right-hand dustcap B MU-8S40 SG-8R45 SG-8R45 One external roller clutch, Rollerbrake/brakeless, electrical shifting Parts lists, exploded drawings Installation of right-hand dustcap B MU-8S40

SG-8R25 SG-8R27 SG-8R36, SG-8R36-VS Three roller clutches, Rollerbrake/brakeless Parts lists, exploded drawings, manuals CJ-8S20

SG-8R35 SG-8R31 SG-8R35 Three roller clutches, Rollerbrake/brakeless Parts lists, exploded drawings Installation instructions CJ-8S20

SG-8R25 SG-8R27 SG-8R30 SG-8R31, SG-8R31-VS Three roller clutches, Rollerbrake/brakeless Parts lists, exploded drawings, manuals Installation instructions CJ-8S20

SG-8R36 SG-8R35 SG-8R30 SG-8R30 Three roller clutches, Rollerbrake/brakeless Parts lists, exploded drawings Installation instructions CJ-8S20

SG-8R35 SG-8R22 SG-8R20 SG-8C22 SG-8C20 SG-8R27 One external roller clutch, Rollerbrake/brakeless Parts lists, exploded drawings Installation instructions CJ-8S20

SG-8R25 SG-8R22 SG-8R20 SG-8R25 One external roller clutch, Rollerbrake/brakeless Parts lists, exploded drawings Installation instructions CJ-8S20 SG-8R27 SG-8R22 SG-8R20 SG-8R22 One external roller clutch, Rollerbrake/brakeless Parts lists, exploded drawings Installation instructions CJ-8S20 SG-8R27 SG-8R25 SG-8R20 SG-8R20 One external roller clutch, Rollerbrake/brakeless Parts lists, exploded drawings and for the belt-drive version Rebuilding instructions, from Shimano site Rebuilding instructions, on this site CJ-8S20 SG-8R27 SG-8R25 SG-8R22 WH-8R25 8-Speed Rear Wheel; for rim brakes only; one external roller clutch Parts list, exploded drawing Installation instructions CJ-8S20 None listed but similar to SG-8R22

Nexus 8-Gang Rücktrittbremsenmodelle

Model Features Documentation MU/Cassette Joint Interchangeability SG-C6061-8CD Electrical shifting, one external roller clutch, coaster brake and disc brake rotor! Parts list, exploded drawings, manuals MU-S705 None listed but probably compatible with SG-C6060-8CD SG-C6061-8C Electrical shifting, one external roller clutch, coaster brake. Parts list, exploded drawings, manuals MU-S705 SG-C6060-8C SG-C6060-8CD Electrical shifting, one external roller clutch, coaster brake and disc brake rotor! Parts list, exploded drawing, manuals MU-S705 SG-C6060-8C SG-C6000-8CD SG-C6060-8C Electrical shifting, one external roller clutch, coaster brake. Partial compatibility withSG-C6060-8R and SG-C6000-8C Parts list, exploded drawing, manuals MU-S705 SG-C6000-8C SG-C6060-8R SG-C6001-8CD One external roller clutch, coaster brake and disc brake rotor! Parts list, exploded drawing, manuals CJ-8S20 SG-C6060-8CD SG-C6000-8D One external roller clutch, coaster brake and disc brake rotor! Parts list, exploded drawing, manuals CJ-8S20 SG-C6000-8C SG-C6000-8CD One external roller clutch, coaster brake and disc brake rotor! Parts list, exploded drawing, manuals CJ-8S20 SG-C6000-8C SG-C6000-8C One external roller clutch, coaster brake Parts list, exploded drawing, manuals CJ-8S20

SG-8C31 SG-8C22 SG-8C20 Nexus SG-8C56 One external roller clutch, coaster brake, electrical shifting Parts list, exploded drawing Installation instructions MU-8S40 SG-8C45 Nexus SG-8C45 One external roller clutch, coaster brake, electrical shifting Parts list, exploded drawing MU-8S40 None listed but similar to SG-8C56 Nexus SG-8C31 One external roller clutch, coaster brake Parts list, exploded drawing, manuals Installation instructions Coaster brake instructions CJ-8S20 SG-8C22 SG-8C20 Nexus SG-8C22 One external roller clutch, coaster brake Parts list, exploded drawing CJ-8S20 SG-8C20 Nexus SG-8C20 One external roller clutch, coaster brake Parts list, exploded drawing CJ-8S20 None listed but probably compatible with SG-8C22

Umbau eine existierenden Fahrrads

In some cases, it is possible to convert an existing bicycle to the use of a Nexus hub.

I converted my early '70s Raleigh International, using a Nexus 8-speed. I like the Nexus 8-speed a lot better than the 7-speed version. Sheldon Brown's Nexus Raleigh International

Sheldon Brown's Nexus Raleigh International

Ideally, the frame should have a dropout spacing of 127 to 135 mm to fit one of the Nexus hubs. Older bicycles are typically narrower than that. In the case of steel (Cromoly) frames, it is usually possible to spread the rear triangle to the needed width. Any good bicycle mechanic will be able to do this, or you can do it yourself. Alfine hubs require 135mm spacing.

If you leave off the Rollerbrake ®, you can get the spacing down to about 126 mm, as already mentioned. This is what I did on my Nexus bike. The Rollerbrake ® is a separate module, and when you buy the hub it is not even installed. (The brake unit would get in the way of fitting the spokes through the hub flange, so it has to be installed after the wheel has been built.)

Siehe auch

Quelle

Dieser Artikel basiert auf dem Artikel Shimano Nexus and Alfine 8-Speed Hubs von der Website Sheldon Browns. Originalautor des Artikels ist Sheldon Brown.