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Rohloff Splined Sprocket
It is possible to retrofit the new splines sprocket system to every Rohloff SPEEDHUB 500/14 transmission.
The higher the chainring/sprocket ratio, the lower the input torque to the gear-unit. It is imperative therefore that the chainring/sprocket factor does not drop below 1.9 (e.g. 34/17=2.0). The smallest permissible sprocket ratios for a rider weighing less than 100kg are: 40:21, 36:19, 34:18, 32:17, 30:16, 28:15, 26:14 und 26:13 = Factor ~ 1,9.
These are the equivalent to a 22:40 combination on a conventional drivetrain. There is no limit whatsoever for higher ratios which means that you can mount bigger chainrings than shown on the table for extreme downhill racing.
If the SPEEDHUB is mounted on a tandem bicycle or if the rider weighs over 100kg, a chainring/sprocket factor of 2.5 (e.g. 42/17=2.5) must be upheld. This equates to sprocket ratios of: 34:13, 35:14, 38:15, 40:16, 42:17, 45:18, 48:19, 52:21.
ATTENTION
Chain-cases such as Hebie must be checked individually for compatibility. The chain-case must run collision free without touching either hub shell nor the splined carrier!
Features
- All Rohloff Splined Sprockets are reversible and constructed to offer a 3mm wider chainline (than the original threaded sprockets) (position of largest sprocket on modern triple cranksets)
- The extended range of sprocket sizes now available, offers a greater choice of primary transmission ratios and thus gear-inches
Material
- Stainless steel
Weight
- 12g (13T)
- 17g (14T)
- 23g (15T)
- 27g (16T)
- 35g (17T)
Scope of delivery
- 1 Rohloff Splind Sprocket
Recommendation
Experience shows that regular commuter/leisure cyclists will be best suited using a transmission factor of 2.5 -2.8 Offroad cyclists using 29er/650B/Fatbikes tend to opt for a lighter gear ratio. Solo cyclists weighing less than 100kg may do so. This lighter ratio must not fall below 1.9 however!The higher the chainring/sprocket ratio, the lower the input torque to the gear-unit. It is imperative therefore that the chainring/sprocket factor does not drop below 1.9 (e.g. 34/17=2.0). The smallest permissible sprocket ratios for a rider weighing less than 100kg are: 40:21, 36:19, 34:18, 32:17, 30:16, 28:15, 26:14 und 26:13 = Factor ~ 1,9.
These are the equivalent to a 22:40 combination on a conventional drivetrain. There is no limit whatsoever for higher ratios which means that you can mount bigger chainrings than shown on the table for extreme downhill racing.
If the SPEEDHUB is mounted on a tandem bicycle or if the rider weighs over 100kg, a chainring/sprocket factor of 2.5 (e.g. 42/17=2.5) must be upheld. This equates to sprocket ratios of: 34:13, 35:14, 38:15, 40:16, 42:17, 45:18, 48:19, 52:21.
ATTENTION
Chain-cases such as Hebie must be checked individually for compatibility. The chain-case must run collision free without touching either hub shell nor the splined carrier!
8541
4250307406739
4250307406739
Rohloff AG Mönchswiese 11 34233 Fuldatal Deutschland [email protected] www.rohloff.de/de/
Rohloff Splined Sprocket
It is possible to retrofit the new splines sprocket system to every Rohloff SPEEDHUB 500/14 transmission.
The higher the chainring/sprocket ratio, the lower the input torque to the gear-unit. It is imperative therefore that the chainring/sprocket factor does not drop below 1.9 (e.g. 34/17=2.0). The smallest permissible sprocket ratios for a rider weighing less than 100kg are: 40:21, 36:19, 34:18, 32:17, 30:16, 28:15, 26:14 und 26:13 = Factor ~ 1,9.
These are the equivalent to a 22:40 combination on a conventional drivetrain. There is no limit whatsoever for higher ratios which means that you can mount bigger chainrings than shown on the table for extreme downhill racing.
If the SPEEDHUB is mounted on a tandem bicycle or if the rider weighs over 100kg, a chainring/sprocket factor of 2.5 (e.g. 42/17=2.5) must be upheld. This equates to sprocket ratios of: 34:13, 35:14, 38:15, 40:16, 42:17, 45:18, 48:19, 52:21.
ATTENTION
Chain-cases such as Hebie must be checked individually for compatibility. The chain-case must run collision free without touching either hub shell nor the splined carrier!
Features
- All Rohloff Splined Sprockets are reversible and constructed to offer a 3mm wider chainline (than the original threaded sprockets) (position of largest sprocket on modern triple cranksets)
- The extended range of sprocket sizes now available, offers a greater choice of primary transmission ratios and thus gear-inches
Material
- Stainless steel
Weight
- 12g (13T)
- 17g (14T)
- 23g (15T)
- 27g (16T)
- 35g (17T)
Scope of delivery
- 1 Rohloff Splind Sprocket
Recommendation
Experience shows that regular commuter/leisure cyclists will be best suited using a transmission factor of 2.5 -2.8 Offroad cyclists using 29er/650B/Fatbikes tend to opt for a lighter gear ratio. Solo cyclists weighing less than 100kg may do so. This lighter ratio must not fall below 1.9 however!The higher the chainring/sprocket ratio, the lower the input torque to the gear-unit. It is imperative therefore that the chainring/sprocket factor does not drop below 1.9 (e.g. 34/17=2.0). The smallest permissible sprocket ratios for a rider weighing less than 100kg are: 40:21, 36:19, 34:18, 32:17, 30:16, 28:15, 26:14 und 26:13 = Factor ~ 1,9.
These are the equivalent to a 22:40 combination on a conventional drivetrain. There is no limit whatsoever for higher ratios which means that you can mount bigger chainrings than shown on the table for extreme downhill racing.
If the SPEEDHUB is mounted on a tandem bicycle or if the rider weighs over 100kg, a chainring/sprocket factor of 2.5 (e.g. 42/17=2.5) must be upheld. This equates to sprocket ratios of: 34:13, 35:14, 38:15, 40:16, 42:17, 45:18, 48:19, 52:21.
ATTENTION
Chain-cases such as Hebie must be checked individually for compatibility. The chain-case must run collision free without touching either hub shell nor the splined carrier!
8541
4250307406739
Rohloff AG
Mönchswiese 11
34233 Fuldatal
Deutschland
[email protected] www.rohloff.de/de/
4250307406739
Rohloff AG
Mönchswiese 11
34233 Fuldatal
Deutschland
[email protected] www.rohloff.de/de/
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Ich habe mein 16er gegen ein 18er Ritzel getauscht und dadurch die Übersetzung an meine Bedürfnisse angepasst. So habe ich gefühlt 1 Gang mehr für Steigungen. Sollte ein Ritzel Steckritzel abgnutzt sein, so läßt es sich anders herum (gespiegelt) montieren, so daß die gegenüberliegenden Zahnflanken genutzt werden.
Wirkt erstmal recht teuer, aber hält länger als bei anderen Fahrrädern das gesamte Schaltwerk. Erst wenn vorne das 42-er Kettenblatt schon stark verschlissen ist, kann man beim Rohloff Ritsel leichten Verschleiß erkennen. Danach kann man es wenden, und nochmals so lange auf der anderen Seite der Zahnflanken fahren. Mit meiner Fahrweise hällt jede Seite etwa 12-20tkm.