Ibis Oso TR 90 Bike 2026Trails All Day. The Ibis Oso TR is the do-everything e-MTB - capable enough for aggressive trail riding, efficient enough for all-day missions. With 160mm of front travel and 150mm rear, it's the balanced center of the modular Oso platform. Bolt-on modular dropouts let riders fine-tune chainstay length and even wheel size configurations to match their terrain or riding styles, and all options are available aftermarket down the road. The Bosch Performance Line CX Gen 5 motor delivers natural, powerful pedal assist, while the 600Wh internal battery covers the majority of rides - pair it with the optional 250Wh Power More extender (sold separately) for 850Wh total when the day calls for it. From after-work laps to full backcountry missions, the TR goes wherever you point it. Features Bosch Performance Line CX Gen 5 motor delivers powerful, natural-feeling pedal assist with refined torque delivery tuned for technical terrain600Wh internal battery with Power More compatibility provides a 850Wh total capacity when paired with the optional 250Wh Power More range extender, with low and centered battery placement for improved balance and handling Modular dropout system with bolt-on dropouts to fine-tune chainstay length and wheel size configuration, with all options available aftermarket Rock Shox Lyrik Base fork, 160mm and a Rock Shox Super Deluxe Select+ rear shock deliver trail-ready suspension performance with reliable, adjustable damping SRAM Eagle 90 Transmission drivetrain with SRAM Maven Base brakes and 220mm centerline rotors front and rear MX wheel configuration with Maxxis Assegai EXO+ Maxx Grip 29x2. 5 up front and Maxxis DHR II DD Maxx Terra rear (27. 5x2. 5 SM-MD / 29x2. 5 XM-XL)Long dropper post compatibility with generous seat tube insertion depths across all sizes (KS Vantage, 34. 9mm: SM-MD 140-170mm / XM-XL 180-210mm)Bosch Kiox 400c display with Bosch Mini Remote controller for intuitive ride management SPECIFICATIONSTravel (F/R)160mm Front / 150mm Rear Fork Rock Shox Lyrik, Base, 160mm Rear Shock Rock Shox Super Deluxe, Select+, 230x60mm Motor Bosch Performance Line CX, Generation 5Battery Bosch Power Tube 600Wh (Power More 250Wh compatible, 850Wh total)Display Bosch Kiox 400c Controller Bosch Mini Remote Bottle Cage Bosch Power More Holder Shifter SRAM Eagle 90 Transmission Rear Derailleur SRAM Eagle 90 Transmission Cassette SRAM XS 1275 Transmission, T-Type, 10-52TChain SRAM GX Eagle Transmission, T-Type Crankset SRAM X1 E-MTB, 165mm, 34T Steel Chainring Chain Guide MRP TR2 Top Guide Brakes SRAM Maven Base, SRAM Centerline 220mm 6-Bolt Rotors (F/R)Wheelset Blackbird Send Alloy, 32H, 35mm Inner Rim Width, Blackbird Hubs 32H 6-Bolt (F: 110x15mm / R: 148x12mm)Tires Maxxis Assegai EXO+ Maxx Grip 29x2. 5 (Front) / Maxxis DHR II DD Maxx Terra, SM-MD: 27. 5x2. 5, XM-XL: 29x2. 5 (Rear)Handlebar Blackbird 35, Aluminum, 30mm Riser Bar, 800mm Stem Blackbird 35, SM-MD: 35mm / XM-XL: 50mm Grips Lizard Skins Strata Single Clamp Headset Cane Creek 50, ZS56/ZS56Seatpost KS Vantage Dropper, 34. 9mm, SM-MD: 140-170mm / XM-XL: 180-210mm Saddle WTB Solano, Fusion Cr Mo, 142mm Intended Use Trail, E-MTBNote: Components are subject to change without notice. METRICINCHIbis Oso TR (160mm Fork)Size SMMDXMLGXLA: Seat Tube Length381381405432450B: Top Tube Length581605625646666C: Stack619630638648660D: Reach438460484508532E: BB Height339342345348351F: BB Drop3431282522G: Head Tube Length99109121136152H: Head Tube Angle63. 2 deg64 deg64 deg63. 9 deg63. 9 degI: Seat Tube Angle77 deg77. 5 deg78 deg78. 5 deg78. 5 degJ: Standover697708736747763K: Chainstay Length440440455455455L: Wheelbase12221241128513151346Crank Arm Length160 mm160 mm160 mm160 mm160 mm Stem Length35 mm35 mm50 mm50 mm50 mm Handlebar Width800 mm800 mm800 mm800 mm800 mm Suggested Rider Height Frame Size SMMDXMLGXLDropper Post Length140-170 mm140-170 mm180-210 mm180-210 mm180-210 mm Ibis Oso TR (160mm Fork)Size SMMDXMLGXLA: Seat Tube Length15. 015. 015. 917. 017. 7B: Top Tube Length22. 923. 824. 625. 426. 2C: Stack24. 424. 825. 125. 526. 0D: Reach17. 218. 119. 120. 020. 9E: BB Height13. 313. 513. 613. 713. 8F: BB Drop1. 31. 21. 11. 00. 9G: Head Tube Length3. 94. 34. 85. 46. 0H: Head Tube Angle63. 2 deg64. 0 deg64. 0 deg63. 9 deg63. 9 degI: Seat Tube Angle77. 0 deg77. 5 deg78. 0 deg78. 5 deg78. 5 degJ: Standover27. 427. 929. 029. 430. 0K: Chainstay Length17. 317. 317. 917. 917. 9L: Wheelbase48. 148. 950. 651. 853. 0Crank Arm Length160 mm160 mm160 mm160 mm160 mm Stem Length35 mm35 mm50 mm50 mm50 mm Handlebar Width800 mm800 mm800 mm800 mm800 mm Suggested Rider Height Frame Size SMMDXMLGXLDropper Post Length140-170 mm140-170 mm180-210 mm180-210 mm180-210 mm