Overview
Start the party
The Hoot Steel was designed to bring the fun. A balanced riding position, 140mm travel fork, and nimble handling come together for confident descents and a desire to hit every little feature on the trail. Then when everyone at the trailhead calls it a day, the Hoot Steel is ready for another lap.
Features
Custom 4130 chromoly steel frame with UDH-compatible dropouts for a tough, modern hardtail platform.
Balanced, playful geometry made for confident descents, quick handling, and repeat laps.
Dropper-ready build with a TranzX 31.6mm dropper and custom travel options.
Specs
| Bottom bracket standard | BSA, 73mm |
| Maximum chainring size | 1x: 36T round or 34T oval |
| Front derailleur type | N/A |
| Headset | ZS44/28.6 upper, EC44/40.0 lower |
| Seatpost diameter | Ø31.6mm |
| Internal dropper post routing | Yes, port below bottom bracket |
| Seatpost clamp | Ø34.9mm |
| Front/rear hub standard | 110x15mm thru axle / 148x12mm thru axle |
| Front/rear axle | Ø15x110mm front, TP=1.5, TL=15mm / Ø12×179.5mm rear, TP=1.0, TL=16.5mm |
| Derailleur hanger | UDH (Universal Derailleur Hanger) |
| Rear brake (rotor) | 180mm; IS mount |
| Front brake (rotor) | Fork dependant |
| Fork travel | 140mm |
| Fork offset | 44mm |
| Bare frame weight (L) | 3,225 g / 7.1 lbs |
| Tire clearance (frame) | 29×2.6″ |
| Braze-ons | Two bottle frame mounts, bolt on cable guides |
| Frame bag dimensions | Download PDF |
| Seatpost insertion depth | Small 296mm; Medium 336mm; Large 376mm; XL 416mm |
| Max weight (rider + gear) | 275 lbs |

| **Geometry is measured with the fork at 20% sag** | Small | Medium | Large | X-Large |
| Recommended rider height | 5’3″-5’7″ | 5’7″-5’11” | 5’11”-6’3″ | 6’3″-6’6″ |
| Inseam | 28″-29″ | 29″-30″ | 30″-31″ | 31″-33″ |
| Standover | 708mm | 716mm | 737mm | 755mm |
| Stack | 617mm | 626mm | 644mm | 662mm |
| Reach | 441mm | 464mm | 479mm | 500mm |
| Effective top tube | 595mm | 620mm | 640mm | 665mm |
| Head tube angle (140mm suspension fork) | 65° | 65° | 65° | 65° |
| Head tube length | 100mm | 110mm | 130 | 150 |
| Seat tube angle | 76° | 76° | 76° | 76° |
| Seat tube length | 380mm | 420mm | 440mm | 480mm |
| Bottom bracket drop | 60mm | 60mm | 60mm | 60mm |
| Chainstay length | 429mm | 429mm | 429mm | 429mm |
| Rear center | 425mm | 425mm | 425mm | 425mm |
| Wheelbase | 1174mm | 1201mm | 1225mm | 1254mm |
| Trail | 129mm | 129mm | 129mm | 129mm |
| Fork offset | 44mm | 44mm | 44mm | 44mm |
| 140mm suspension fork axle to crown length | 523mm | 523mm | 523mm | 523mm |
| Seatpost insertion depth | 296mm | 336mm | 376mm | 416mm |
Warranty
- All Otso frames are warranted against defects in materials and workmanship for 5 years from the date of retail purchase.
- This warranty applies to the original owner only and is not transferable.
- Please keep your sales receipt or order number for any warranty claims to ensure a quick resolution.
What’s Not Covered:
- Damage from improper assembly, maintenance, or user/assembler inexperience.
- Modifications, neglect, misuse, competition, commercial use, or accidents.
- Installation of incompatible components, parts, or accessories.
- Normal wear and tear, or damage to paint, surface finish, or aesthetics.
- Compatibility of original components with a replacement frame is not guaranteed.
- Costs for labor, parts removal, refitting, or re-adjustment, including wheel rebuilds.
Claim Process:
- Warranty claims are limited to the repair or replacement of the defective frame, at Otso’s discretion.
- This warranty does not cover incidental or consequential damages.
Legal Information:
- This warranty gives you specific legal rights, which may vary based on location. It does not affect your statutory rights.

