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Carbon Frame
The Transition Sentinel Carbon Frame is a 150mm-travel enduro/all-mountain frameset built around full carbon front and rear triangles. The V3 Sentinel brings refined kinematics for a lively, progressive platform with 24% rear shock progression, in-frame BOOM Box storage, and geo-adjust flip chip for mixed-wheel compatibility.
Supplied with a 2026 FOX Float X2 Factory rear shock (205x60mm). Runs 29" wheels on sizes S-XXL (mixed wheel compatible) and dual 27.5" on size XS. Coil and air shock compatible.
- Full carbon front and rear triangles -- 150mm rear travel
- FOX Float X2 Factory rear shock (2026) -- 205x60mm, coil and air compatible
- BOOM Box in-frame storage with supplied storage bags
- Refined V3 kinematics -- lively, progressive, 24% rear shock progression
- Mixed-wheel compatible -- geo-adjust flip chip in lower shock mount
- 29" on S-XXL, dual 27.5" on XS
- Molded chainstay, seatstay, and lower downtube protection
- Main pivot mudguard and new cable-routing ports
- SRAM UDH derailleur hanger, ISCG 05 tabs
- Lifetime warranty against manufacturing defects + crash replacement policy
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Reach (mm) | 426 | 451 | 476 | 501 |
| Stack (mm) | 618 | 624 | 636 | 646 |
| Effective Top Tube (mm) | 549 | 577 | 605 | 632 |
| Seat Tube Length (mm) | 360 | 390 | 430 | 460 |
| Effective Seat Angle (deg) | 78.9 | 78.3 | 77.9 | 77.5 |
| Saddle Height for Eff. Seat Angle (mm) | 600 | 660 | 720 | 780 |
| Actual Seat Angle (deg) | 72.6 | 72.6 | 72.6 | 72.6 |
| Seat Tube Offset at BB (mm) | 69 | 69 | 69 | 69 |
| Head Tube Length (mm) | 100 | 110 | 120 | 130 |
| Head Tube Angle (deg) | 63.6 | 63.6 | 63.6 | 63.6 |
| Chainstay (mm) | 440 | 440 | 440 | 446 |
| Wheelbase (mm) | 1208 | 1237 | 1269 | 1302 |
| BB Drop Front (mm) | 31 | 31 | 31 | 31 |
| BB Drop Rear (mm) | 11 | 11 | 11 | 11 |
| Est. BB Height (mm) | 344 | 344 | 344 | 344 |
| Standover Height (mm) | 690 | 690 | 695 | 705 |
29" wheel setting. Front and rear BB drop differ due to the mixed-wheel-capable geometry; size-specific chainstay on XL. XS (dual 27.5") and XXL geometry not shown -- contact us for full chart.
Shipping Policy
Components:
All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 2-5 business days of purchase.
Bicycles:
Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.
Riding Gear & Apparel:
Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 2-5 business days.
Returns & Exchanges:
If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.
For full details, please see our Refund Policy before initiating a return.
