Electromechanical derailleur for coaxial assembly
The disclosure relates to an electromechanical rear derailleur for coaxial assembling on a rear wheel axle. The derailleur has a base element, a pivot mechanism, and a movable element having a chain guide assembly. The chain guide assembly is connected to the movable element so as to be rotatable about a rotation axis. A blocking device permits the chain guide assembly to be established relative to the movable element. The blocking device is able to be inserted into the movable element in two different positions.
1 . A method for adjusting a bicycle drive including a rear derailleur, a multi-chain wheel assembly, a front chainring and a chain, wherein the rear derailleur is adjusted relative to the multi-chain wheel assembly, the method comprising:
determining a bicycle category;
depending on the bicycle category, determining a chain length;
depending on the bicycle category, shifting to a reference sprocket, such that the chain engages with the reference sprocket;
depending on the bicycle category, positioning at least one blocking device at an active setting by adjusting the at least one blocking device to a first locked position for a first bicycle category or a second locked position for a second bicycle category that is different from said first bicycle category;
and rotating the rear derailleur rearward about a rear wheel axle until an ideal chain tension is achieved;
wherein the at least one blocking device locks a chain guide assembly of the rear derailleur at a first angular orientation relative to a movable element of a rear derailleur, when the at least one blocking device is in the first locked position; and
wherein the at least one blocking device locks the chain guide assembly at a second angular orientation relative to the movable element, when the at least one blocking device is in the second locked position.
2 . The method of claim 1 , wherein the reference sprocket is one of the central sprockets of a multi-chain wheel assembly.
3 . The method of claim 2 , wherein the reference sprocket is a seventh sprocket of the multi-chain wheel assembly.
4 . The method of claim 1 , further comprising inserting the at least one blocking device into the moveable member of the rear derailleur in a third locked position.
5 . The method of claim 1 , further comprising securing the rear derailleur to a bicycle after the ideal chain tension is achieved.
6 . The method of claim 1 , further comprises determining the bicycle category includes a suspension component.
7 . The method of claim 6 , further comprises determining the chain length based on a length of a chain stay at a zero spring state of the suspension component, a length of the chain stay at a maximum spring state of the suspension component, a length of the chain stay at a sag spring state of the suspension component and a size of a chainring.
8 . The method of claim 1 , further comprises determining the bicycle category does not include a suspension component.
9 . The method of claim 8 , further comprises determining the chain length based on a length of a chain stay of a bicycle and a size of a chainring.
10 . The method of claim 1 , further comprises determining that the adjustment of the rear derailleur is correct.
11 . The method of claim 1 , further comprising displaying a visual signal indicating that the correct adjustment of the rear derailleur was completed.
12 . The method of claim 11 , wherein the visual signal includes a light emitting diode.
13 . The method of claim 1 , further comprises repositioning the at least one blocking device into a passive setting in which the at least one blocking device releases the chain guide assembly relative to the moveable element.
14 . The method of claim 1 , wherein if the bicycle category is the first bicycle category, the at least one blocking device is in the first locked position, and if the bicycle category is the second bicycle category, the at least one blocking device is in the second locked position.
15 . The method of claim 14 , wherein the bicycle category relates to a bicycle with or without rear suspension.
16 . The method of claim 1 , wherein the at least one blocking device is rotated by 180 degrees between the first locked position and the second locked position.