Bike wheel holder (1; 500) for a vehicle, preferably bike front wheel holder, for attaching a wheel to a rooftop of a vehicle, the bike wheel holder (1; 500) comprising a load connecting portion (2; 520), which is releasably attachable to a cross bar of a load carrier, and a wheel holding member (3; 400) configured for the releasable attachment of a wheel by receiving an end of an axle of the wheel, wherein the bike wheel holder comprises a docking device (100; 550) configured for releasable attachment of the wheel holding member (3; 400) to the load connecting portion (2; 520) to allow for attachment of a wheel to the wheel holding member (3; 400) at a location remote from the load connecting portion (2; 520), wherein the load connecting portion (2; 520) comprises a cross bar engagement portion having a profile adapted to the contour of the cross bar for reliable engagement and a load connecting surface opposite the cross bar engagement portion configured for the attachment of the wheel holding member (3; 400), characterized in that the load connecting portion (2; 520) is configured to be attached to a cross bar of a load carrier, which is mounted to the rooftop of the vehicle in the intended fashion, such that the cross bar engagement portion is in contact with the cross bar and such that by moving the wheel holding member (3; 400) towards the load connecting surface of the load connecting portion (2; 520) in a substantially vertical downward direction, the docking device (100; 550) is brought into a holding state in which it holds the wheel holding member (3; 400) against gravity such that the position and orientation of the wheel holding member with respect to the load connecting portion is determined. a load connecting portion (2; 520), which is releasably attachable to a cross bar of a load carrier, and a wheel holding member (3; 400) configured for the releasable attachment of a wheel by receiving an end of an axle of the wheel, wherein the bike wheel holder comprises a docking device (100; 550) configured for releasable attachment of the wheel holding member (3; 400) to the load connecting portion (2; 520) to allow for attachment of a wheel to the wheel holding member (3; 400) at a location remote from the load connecting portion (2; 520), wherein the load connecting portion (2; 520) comprises a cross bar engagement portion having a profile adapted to the contour of the cross bar for reliable engagement and a load connecting surface opposite the cross bar engagement portion configured for the attachment of the wheel holding member (3; 400), characterized in that the load connecting portion (2; 520) is configured to be attached to a cross bar of a load carrier, which is mounted to the rooftop of the vehicle in the intended fashion, such that the cross bar engagement portion is in contact with the cross bar and such that by moving the wheel holding member (3; 400) towards the load connecting surface of the load connecting portion (2; 520) in a substantially vertical downward direction, the docking device (100; 550) is brought into a holding state in which it holds the wheel holding member (3; 400) against gravity such that the position and orientation of the wheel holding member with respect to the load connecting portion is determined.