Frame : 6061 Butted, Triple Triangle, with Dirt Worthy Geometry, dis

Fork : Rock Shock Pilot XC

Headset : Ritchey Sealed threadless

Stem : GT Design, Tig welded threadless ,10 degree rise with 4-bolt

Handlebar : Syncros, Butted Alum. 20 mm Rise, 6 degree bend, anatomicall

Tape/Grips : GT ATB

Breaks : Shimano Deore

Control Lever : Shimano Deore 9 spd

Front Derailleur : Shimano Deore

Rear Derailleur : Shimano Deore XT

Crankset : Shimano Deore (44,34,24T)

BB : Shimano Cartridge Sealed

Cassette : SRAM 9 spd (12-32T)

Chain : Shimano 9 spd

Pedal : Shimano M-515 Clipless

Rim : Syncros Big Box

Front Hub : Shimano Deore Disc

Rear Hub : Shimano Deore Disc

Spoke : Stainless steel 14 gauge

Front Tire : Tioga Factory XC 26 x 1.95

Rear Tire : Tioga Factory XC 26 x 1.95

Saddle : GT Gran Prix

Seatpost : Alloy Micro adjust

Seat Clamp : GT Alum QR

사양이 이거거든요
업그레이드하고싶은데 자전거는 어디서 부터해야하나요?
안장도 저렴하면서 조은거?^^바꾸고싶은데..벨로?그걸로요.5만원정도하던데요 중고있으신분 쪽지도 주세요^^ 구입하고싶습니다~
업글순서좀 조언바랍니다^^
즐거운하루되세요~

아 그리고요 deore-xt-xtr 다른점이 무게?강도? 이런거때문인가요? 왜케 비싼지요--; 타당한 이유도알고싶어요 아직 초보라서^^