A telescopic steering column assembly (100; 200; 300; 400; 500) comprising an upper shroud portion (101; 201; 301; 401; 501) and a lower shroud portion (102; 202; 302; 402; 502), the two shroud portions (101, 102; 201, 202; 301, 302; 401, 402; 501, 502) being able to move relatively along a common linear path during telescopic adjustment, a telescopic steering shaft that passes through the upper and lower shroud portions (101, 102; 201, 202; 301, 302; 401, 402; 501, 502) and is supported by the shroud portions (101, 102; 201, 202; 301, 302; 401, 402; 501, 502) through a support bearing assembly (108; 208; 308; 408; 508) that acts between an upper portion (103; 203; 303; 403; 503) of the telescopic steering shaft and the lower shroud portion (102; 202; 302; 402; 502) that move relative to one another axially during telescopic adjustment of the telescopic steering column assembly (100; 200; 300; 400; 500) for reach, the support bearing assembly (108; 208; 308; 408; 508) in use removing free play between the shaft and the shroud portions (101, 102; 201, 202; 301, 302; 401, 402; 501, 502) that would otherwise occur in at least one direction orthogonal to the telescopic movement, characterised in that the support bearing assembly (108; 208; 308; 408; 508) comprises: a set of bearing elements (109; 209; 309; 409; 509), a bearing cage (110; 210; 310; 410; 510) comprising a sleeve that is located between an outer face of the upper shaft (103; 203; 303; 403; 503) and an inner face of the lower shroud portion (102; 202; 302; 402; 502) and is free to move axially relative to one of the upper shaft (103; 203; 303; 403; 503) and the lower shroud portion (102; 202; 302; 402; 502), the cage (110; 210; 310; 410; 510) including pockets (111; 211; 311; 411; 511) that extend through the sleeve, each pocket (111; 211; 311; 411; 511) loosely locating a bearing element (109; 209; 309; 409; 509) such that a portion of the bearing element (109; 209; 309; 409; 509) extends through the cage (110; 210; 310; 410; 510) to engage with a first bearing race surface defined by one of the upper shaft (103; 203; 303; 403; 503) and the lower shroud portion (102; 202; 302; 402; 502), an annular bearing race (112; 212; 312; 412; 512) having a tapered second bearing race surface that engages the bearing elements (109; 209; 309; 409; 509), the annular bearing race (112; 212; 312; 412; 512) being located between the cage (110; 210; 310; 410; 510) and the upper shaft (103; 203; 303; 403; 503) or the cage (110; 210; 310; 410; 510) and the lower shroud portion (102; 202; 302; 402; 502) so that the annular bearing race (112; 212; 312; 412; 512) is on the opposite side of the cage (110; 210; 310; 410; 510) to the first bearing race surface, and a biasing means (113; 213; 313; 413; 513) which applies an axially directed thrust to the bearing elements (109; 209; 309; 409; 509) to force them into engagement with the second bearing race surface of the annular bearing race (112; 212; 312; 412; 512), the thrust being reacted by the second bearing race surface thereby to cause the bearing elements (109; 209; 309; 409; 509) additionally to apply a radial force onto the first bearing race surface. a set of bearing elements (109; 209; 309; 409; 509), a bearing cage (110; 210; 310; 410; 510) comprising a sleeve that is located between an outer face of the upper shaft (103; 203; 303; 403; 503) and an inner face of the lower shroud portion (102; 202; 302; 402; 502) and is free to move axially relative to one of the upper shaft (103; 203; 303; 403; 503) and the lower shroud portion (102; 202; 302; 402; 502), the cage (110; 210; 310; 410; 510) including pockets (111; 211; 311; 411; 511) that extend through the sleeve, each pocket (111; 211; 311; 411; 511) loosely locating a bearing element (109; 209; 309; 409; 509) such that a portion of the bearing element (109; 209; 309; 409; 509) extends through the cage (110; 210; 310; 410; 510) to engage with a first bearing race surface defined by one of the upper shaft (103; 203; 303; 403; 503) and the lower shroud portion (102; 202; 302; 402; 502), an annular bearing race (112; 212; 312; 412; 512) having a tapered second bearing race surface that engages the bearing elements (109; 209; 309; 409; 509), the annular bearing race (112; 212; 312; 412; 512) being located between the cage (110; 210; 310; 410; 510) and the upper shaft (103; 203; 303; 403; 503) or the cage (110; 210; 310; 410; 510) and the lower shroud portion (102; 202; 302; 402; 502) so that the annular bearing race (112; 212; 312; 412; 512) is on the opposite side of the cage (110; 210; 310; 410; 510) to the first bearing race surface, and a biasing means (113; 213; 313; 413; 513) which applies an axially directed thrust to the bearing elements (109; 209; 309; 409; 509) to force them into engagement with the second bearing race surface of the annular bearing race (112; 212; 312; 412; 512), the thrust being reacted by the second bearing race surface thereby to cause the bearing elements (109; 209; 309; 409; 509) additionally to apply a radial force onto the first bearing race surface.