A wheelchair (10) is disclosed. The wheelchair (10) comprises a seat module (10), a backrest module (20), a front frame module (30), and a rear wheel module (40). The seat module (10) includes a seat frame (see 11, figure 2) supporting a seat. The backrest module (20) includes a backrest frame (21) connected to the seat frame (11) and supports a backrest (22). The front frame module (30) includes a front frame (31). The front frame (31) includes left and right bended legs (31a, 31b) removably connected at their upper end to the seat frame (11) and at their lower end to a footrest (32). The bended legs (31a, 31b) are supported by caster wheel assemblies (35, 36) via caster supports (34). The rear wheel module (40) includes left and right rear wheels (41a, 41b) pivotally connected to an axle (42). The rear wheel module (40) is removably connected to the seat module (10) through left and right connecting elements (43a, 43b). The seat frame (11) consists of left and right longitudinal profiles (11a, 11b) extending in the same plane. The seat includes a seat plate (12) extending between the left and right profiles (11a, 11b) of the seat frame (see 11, figure 2) where the seat plate (12) is integral with the left and right profiles (11a, 11b).
