Abstract: A frame assembly for a two-wheel vehicle includes a front wheel fork and chainstays. Between the front wheel fork and the chainstays, the frame assembly further includes a saddle tube, a crank housing, and a lower tube connecting the crank housing to a steering tube. A parallelogram-shaped suspension assembly is attached to a rear end of the chainstays.

Abstract: A seat suspension assembly for a bicycle has a movable and cushioning intermediate section between a lower seat post part and an upper seat attachment part. The intermediate section comprises parallel bars journalled to a head on top of the seat post, and to the seat attachment part. A springing mechanism is equipped with a system for adjusting the effective spring rate of the springing mechanism.

Abstract: A springy seat recliner assembly for a bicycle comprises three sections, namely a seat post member (20) to be entered and clamped in a seat tube, further a movable intermediate section (3, 4), and a seat attachment part (2) having attachment details for a conventional saddle. The intermediate section comprises substantially parallel or the seat post member (20) and on the seat attachment part (2), as well as a springing mechanism mounted in between two diagonally placed bearings (23, 28) to push the seat attachment part (2) upwards. When the rear wheel receives a shock, a very good compensating cushioning movement directed obliquely downwards and backwards is obtained.

Abstract: A handlebar stem for a bicycle includes a post to be clamped to a bicycle tube frame, upper and lower profile arms journalled to a top part of the post, and a forward handlebar clamp journalled to the upper and lower profile arms, the handlebar clamp and the upper and lower profile arms being movable to different angular positions relative to the post. A shock absorber acts to cushion forces acting on the handlebar clamp in at least some of the different angular positions. The shock absorber includes an outer pipe, an inner pipe telescopically movable in the outer pipe, and a first spring having a spring force acting between the inner and outer pipes. A locking device is operable to lock the handlebar clamp and the upper and lower profile arms in a plurality of arrested different angular positions. The locking device includes a plurality of holes formed in the inner pipe, a piston having a stud, and a second spring urging the piston toward the inner pipe to cause the stud to enter a selected one of the holes.

Abstract: An adjustable and lockable handlebar stem includes a post to be clamped in a forward frame tube of a bicycle, one upper arm and one lower arm pivotably supported at first bearing points on the post, and a handlebar mounting member with a through hole for accommodating a handlebar. The handlebar mounting member is pivotably supported by the two arms at second bearing points. The arms can be locked together, for example by means of a stud in a slide groove. Due to unequal distances between the first bearing points and the second bearing points, there is achieved an ergonometrically favorable rotation of the handlebar itself when the position of the complete mechanically movable unit is changed.