Allowed Sprocket Combinations For Rohloff Speedhub 500 - Rohloff Gates SPEEDHUB 500/14 Manuel D'utilisation

ratio overview

Allowed sprocket combinations for Rohloff SPEEDHUB 500/14

The following table shows, which sprocket-size combination of chain sprockets for
the Rohloff SPEEDHUB 500/14 equates to the possible combinations of the Gates
Carbon Drive Sprocket. You can find the actual sprocket gear ratio in brackets.
Please note:
The following
up to a weight
and users above
Gates 19 Tooth rear
Sprocket
39 teeth front (2,05) ≈ 38/18 (1,95) ≈ 38/19
42 teeth front (2,21) ≈ 38/17 (2,10) ≈ 38/18
46 teeth front (2,42) ≈ 42/17 (2,30) ≈ 38/67
50 teeth front (2,63) ≈ 42/16 (2,50) ≈ 40/16
55 teeth front (2,89) ≈ 46/16 (2,75) ≈ 44/16
Please note:
Smallest permitted belt gear ratio:
The belt gear ratio of the Rohloff SPEEDHUB 500/14 converts the low number of
revolutions of the crank to a high number of revolutions at the rear sprocket and
reduces the incoming torque for the transmission in the same ratio. To exclude
an overload of the transmission, the sprocket gear ratio must not be lower
than 1,9. This equates to the sprocket-size combinations of 39/20 and 42/22.
38
sprocket combinations
of 100kg. The
a weight of
20 Tooth rear
are only allowed
allowed combinations
100kg are shown
22 Tooth rear
not permitted
(1,91) ≈ 38/20
(2,09) ≈ 38/87
(2,27) ≈ 38/17
(2,50) ≈ 40/16
for users
for tandems
on page 38.