Orbea Oiz M21 Bike 2026XC Speed, Race-Ready Spec XC riders who want genuine race capability without stepping up to a flagship carbon build have a clear option in the Oiz M21. The Oiz platform runs 120mm of travel front and rear, tuned for the rougher, more technical demands of modern cross-country racing. OMR carbon construction. Orbea's second-tier carbon layup gives the frame race-level stiffness without the weight penalty of a lower-tier build, and the frame's I-Line shock routing keeps the rear shock's lockout cable running internally and in a straight line, cutting friction so the remote stays crisp lap after lap. A 76. 5-degree seat tube angle puts you forward and centered over the pedals for efficient climbing, and the frame is sized from Small through X-Large, with wheelbases running from 1142mm to 1223mm to match. The M21 build pairs a SRAM Eagle AXS wireless drivetrain with Shimano stopping power - a mix built around performance rather than brand loyalty. A SRAM AXS Pod controller and S1000 Eagle AXS rear derailleur shift a 10-52t cassette with no cable to stretch or contaminate over a race season, and Shimano M6100 hydraulic disc brakes bring dependable, proven stopping power front and rear. A Rock Shox SID Select fork up front is matched to a Rock Shox SID Luxe Select+ shock in back, both running the same 120mm, 3-position tune so you can firm up the suspension for a climb and open it back up the moment the trail turns technical. Oquo wheels wrapped in Maxxis Rekon Race tires keep rolling resistance low without giving up traction, and an OC Mountain Control dropper post means you're not stuck in a fixed seatpost position when the descents get technical. Features OMR carbon frame Orbea's second-tier carbon layup delivers race-level stiffness and strength without the weight penalty of a lower-tier build120mm front and rear travel Rock Shox SID Select fork paired with a Rock Shox SID Luxe Select+ shock, both with a 3-position lockout for climbs, descents, and everything between I-Line internal shock routing straight, internal cable path for the shock lockout cuts friction for a crisp, reliable remote SRAM Eagle AXS wireless drivetrain AXS Pod shifter and S1000 Eagle AXS rear derailleur run a 10-52t cassette with no cables to stretch or contaminate over a race season Shimano M6100 hydraulic disc brakes reliable, proven stopping power front and rear Oquo wheels on Maxxis Rekon Race tires a light, fast-rolling combination built for XC race demands OC Mountain Control dropper post 31. 6mm dropper lets you get the saddle out of the way for technical descents SPECIFICATIONSFrame Carbon OMR, Fiberlink, I-Line Shock Fork Rock Shox SID Select Debon Air+ RL 3-Pos, 120mm Travel Rear Shock Rock Shox SID Luxe Select+ 3-Pos, 190x45mm Headset Alloy 1-1/2" Black Oxidated Bearing Shifters SRAM AXS Pod, 12-Speed Front Derailleur-Rear Derailleur SRAM S1000 Eagle AXSCrankset SRAM Eagle 70 DUB 32t Bottom Bracket SRAMChain SRAM GX Eagle, 12-Speed Cassette SRAM XS-1270 Eagle 10-52t, 12 Speed Brakes Shimano M6100 Hydraulic Disc Wheelset OQUO Mountain Performance MP28PROTires Maxxis Rekon Race 29x2. 4" WT 120 TPI EXO TLRHandlebar OC Mountain Performance MP30, 760mm Wide Stem OC Mountain Performance MP21, -6deg Rise Grips/Bar Tape OC Lock-On Seatpost OC Mountain Control MC22 Dropper, 31. 6mm Seatclamp Bolt-Type Saddle Fizik Vento Argo X5 Aluminum, 140mm Intended Use XC, Trail Note: Components are subject to change without notice. METRICINCHOrbea Oiz Size Small Medium Large Extra Large A: Seat Tube Length405432480510B: Effective Top Tube575598623650C: Stack596596606619D: Reach425450472496E: BB Height333333333333F: BB Drop42424242G: Head Tube Length9090100115H: Head Tube Angle67 deg67 deg67 deg67 degI: Seat Tube Angle76. 5 deg76. 5 deg76. 5 deg76. 5 degJ: Standover Height731741741750K: Chainstay Length432432432432L: Wheelbase1138116311891219Crank Arm Length-Stem Length-Handlebar Width760 mm760 mm760 mm760 mm Suggested Rider Height Frame Size Small Medium Large Extra Large Rider Height61. 1" - 66. 9" 155 - 170 cm65" - 70. 9" 165 - 180 cm70. 1" - 74. 8" 178 - 190 cm72. 8" - 78" 185 - 198 cm Orbea Oiz Size Small Medium Large Extra Large A: Seat Tube Length15. 917. 018. 920. 1B: Effective Top Tube22. 623. 524. 525. 6C: Stack23. 523. 523. 924. 4D: Reach16. 717. 718. 619. 5E: BB Height13. 113. 113. 113. 1F: BB Drop1. 71. 71. 71. 7G: Head Tube Length3. 53. 53. 94. 5H: Head Tube Angle67. 0 deg67. 0 deg67. 0 deg67. 0 degI: Seat Tube Angle76. 5 deg76. 5 deg76. 5 deg76. 5 degJ: Standover Height28. 829. 229. 229. 5K: Chainstay Length17. 017. 017. 017. 0L: Wheelbase44. 845. 846. 848. 0Crank Arm Length-Stem Length-Handlebar Width760 mm760 mm760 mm760 mm Suggested Rider Height Frame Size Small Medium Large Extra Large Rider Height61. 1" - 66. 9" 155 - 170 cm65" - 70. 9" 165 - 180 cm70. 1" - 74. 8" 178 - 190 cm72. 8" - 78" 185 - 198 cm