Technische Daten

Bereich Wert
Anzahl der Gänge 14
Gangsprünge gleichmäßig 13,6 %
Gesamtübersetzung 526 %
Klemmbreite im Rahmen 135mm (XL=170mm, XXL=190mm)
Speichenzahl 32/36 (XL+XXLnur 32-Loch)
Speichenflansch-Abstand (Mitte-Mitte) 58 mm, symmetrisch
Speichen-Lochkreisdurchmesser Ø100 mm
Speichenloch-Durchmesser Ø2,7 mm
Speichenflansch-Breite 3,2 mm
Achsdurchmesser am Ausfallende 9,8 mm
Achsbreite CC über alles 147 mm (XL=182mm, XXL=202mm)
Achsbohrungsdurchmesser CC Ø5,5 mm, für Achs-Schnellspanner
Achsbreite TS über alles 171mm/TS lang 179mm
Achsbreite TS über alles Version XL 206mm/TS lang 214mm
Achsgewinde TS M10x1
Bremsscheiben-Zentrierdurchmesser Ø52 mm
Lochkreisdurchmesser Bremsscheibenaufnahme Ø65 mm
Bremsscheiben-Befestigungsschrauben 4 x M8x0,75
Abstand Ausfallende-Bremsscheibenflansch 16 mm (IS 1999)
Gewicht 1700 g (CC), 1800 g (CC EX), 1825 g (CC DB)
Gewicht Version XL/XXL 1980g (XLCC DB) / 2005g (XXLCC DB OEM2)
Ölfüllung 25 ml max .
Ritzel-/Splined Carriergewinde M34x6 P1, Toleranz 6H
Ritzelzahnung für Fahrrad-Schaltungsketten 1/2 x 3/32” (ISO Nr. 082)
Ritzelzähnezahl 16 optional: 13, 15 und 17 (Steckversion 13-19+21)
Kettenlinie (135mm/142mm) 54mm (58mm mit 13er Ritzel + Steckritzel)
Kettenlinie Version XL/XXL 72mm (75mm mit 13er Ritzel + Steckritzel)
Kleinste zulässige Kettenübersetzung (Personen bis 100kg) 40/21, 36/19, 34/18, 32/17, 30/16, 28/15 (Übersetzungsfaktor ~ 1,90)
(Personen über 100kg/Tandem) 53/21, 48/19, 45/18, 42/17, 40/16, 38/15 (Übersetzungsfaktor ~ 2,50)
Riemenlinie Gates Carbon Drive 54,75mm/Version Xl 72mm
Kleinste zulässige Riemenübersetzung 39/19, 39/20, 42/22, 46/24 (Übersetzungsfaktor ~ 1,90)
(Personen über 100kg/Tandem) 46/19, 50/20, 55/22, 60/24, (Übersetzungsfaktor ~ 2,50)
Maximales Eingangsdrehmoment 130 Nm
Schaltbetätigung über Dreh-Schaltgriff (rechts oder links möglich)
Schaltgriff-Drehwinkel pro Gangwechsel/gesamt 21°/273°
Schaltansteuerung über zwei Bowdenzüge (pull-pull system)
Schaltseileinzug pro Gangwechsel/gesamt 7,4 mm/96,2 mm

Weight Comparison

The Rohloff SPEEDHUB 500/14 is with a weight of 120g per gear, the lightest gear hub on the market. The gear range is the same as high quality 27 gear derailleur systems due to the 14 gears within the hub being evenly spaced out at 13.6% increases. With the Rohloff SPEEDHUB 500/14 there is no longer a need for the following parts:
-Front and rear derailleur 
-Two shifters including
-Rear hub with Cassette
-Small and middle chainrings
-The total average weight of all these components is approx. 1600g.

The weight of a fitted Rohloff SPEEDHUB 500/14 CC OEM including twist shifter, shifter cables and cable guide is approx. 1820g.

The comparison between the Rohloff SPEEDHUB 500/14 and the derailleur system shows only a slight increase in weight. For that, the user receives a: 

- Service-free,
- dirt-free full-encapsulated,
- user-friendly gear system and

- high reliability
- alongwith a long life span.

Comparison of Mechanical Efficiency

The mechanical efficiency* and consequently the size of the loss of the Rohloff SPEEDHUB 500/14 is entirely comparable with that of the derailleur system.

The losses of a derailleur system consist of the friction caused by the bottom bracket, chain, cassette and the hub bearings. The amount of friction loss depends on the size of the sprockets, the angle of the chain line and condition of wear. In reality this proves to be 1 - 5%, leaving the derailleur system with a working efficiency lying between 95% and 99%.

The losses of the Rohloff SPEEDHUB 500/14 are caused by the fricion coming from the bottom bracket, chain and gearbox. Here, however, the chain runs in a straight line from just one chainring reducing sideways friction on the sprockets. Most of the friction occurs when all the planetary gear sets are used within the gearbox. The overall average loss of the gears within the Rohloff SPEEDHUB 500/14 is approximately 1 - 5%, leaving the working efficiency between 95% and 99%.

The Rohloff SPEEDHUB 500/14 is, therefore, consequently an optimum choice for the everyday and sports rider.

* More detailed info over the working efficiency is to be found on the web under www.rohloff.de.

Sprocket Ratios

The Rohloff SPEEDHUB 500/14 has a 526% range of gears, that means gear #14 is 5.26 times greater than gear #1. The 14 gears are evenly spaced out over this range in 13.6% increases. Through the choice of chainring and sprocket in use, the Rohloff SPEEDHUB 500/14 can be tuned for the specific riding purpose. The Rohloff SPEEDHUB 500/14 comes standard with a 16 tooth sprocket. 13, 15 and 17 tooth sprockets are available as alternatives.

In the following tables the distance travelled per crank revolution is listed for gears #1 and #14. The listed distance travelled per crank revolution is shown in the tables for a variety of sprocket ratios and wheel sizes (20", 26" and 28" wheels).

When the particular wheel/sprocket/chainring size and gear is not listed in the tables, then the following formula can be used to calculate the exact distance travelled per crank revolution of the Rohloff SPEEDHUB 500/14:

Distance travelled per crank revolution  = W x C / S x IGR

Formula key:
W = Wheel circumference
C = Chainring size
S = Sprocket size
IGR = Inner gear ratio listed in the following table 

Inner gear ratio IGR = hub revolutions per sprocket revolutions of the Rohloff SPEEDHUB 500/14

The tables or the following formula can be used to compare the Rohloff SPEEDHUB 500/14 to a derailleur gear system
Ratio of the derailleur gear system  = C¸ S
Ratio of the Rohloff SPEEDHUB 500/14= IGR x C ¸ S
 

 

Innere Getriebeübersetzung

Innere Getriebeübersetzung ÜGetr. = Nabendrehzahl pro Ritzeldrehzahl

Technische Änderungen vorbehalten!
Gang ÜGetr.
1 0,279
2 0,316
3 0,360
4 0,409
5 0,464
6 0,528
7 0,600
8 0,682
9 0,774
10 0,881
11 1,000
12 1,135
13 1,292
14 1,467

Smallest Permissible Sprocket Ratios (solo rider = 100kg)

The sprocket ratio on the Rohloff SPEEDHUB 500/14 (e.g. 42:16) converts the slow rotational speed at the crank, into a fast rotational speed at the sprocket and reduces the input torque for the Rohloff SPEEDHUB 500/14 in the same proportion. To prevent overstraining the hub, a minimum sprocket factor of 1.90 must be upheld. With the available sprockets, these minumum ratios are achieved with: 53:21, 48:19,  45:18, 42:17, 40:16, 38:15. These primary transmisison ratios resemble a singlespeed transmission of 22:40. Larger chainrings can be used without any exceptions.

Attention

The following sprocket ratios must not be undercut if the SPEEDHUB is used by a rider weighing more than 100kg, or mounted on a tandem application:  53:21, 48:19,  45:18, 42:17, 40:16, 38:15
This equates to a transmission factor of 2.50.