Transition Sentinel Alloy Deore 2025
2025 Mountain
Estimate price |
3,499$
Weight | 16.51 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Travel Front 160mm -
Travel Rear 150mm -
Fork RockShox Psylo
-
Groupset Deore -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Shimano Deore Hydraulic Disc
Sizing
Recommended size guide.
XS
143cm - 160cm
SM
154cm - 170cm
MD
164cm - 182cm
LG
175cm - 190cm
XL
184cm - 200cm
XXL
190cm - 207cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Sentinel Alloy 150mm
Suspension Fork
RockShox Psylo Gold RC, (160mm)
Rear Shock
RockShox SuperDeluxe Base, (205x60mm)
Drivetrain
Rear Derailleur
Shimano Deore M6100 SGS 12sp
Shift Levers
Shimano Deore M6100 iSpec EV
Cassette
Shimano Deore M6100 (10-51t)
Crank
Shimano Deore M6100, (30t/165mm)
Bottom Bracket
73mm BSA Threaded
Chain
Shimano Deore M6100
Wheels
Front Hub
Novatech D791SB/D902SB
Rear Hub
Novatech D791SB/D902SB
Rims
WTB ST i30
Spokes
Pillar Double Butted
Tires
Front: Maxxis Assegai 3C EXO/TR (2.5), Rear: Maxxis Minion DHRII 3C EXO/TR (2.4)
Brakes
Brakes
Shimano Deore M6120 4 Piston
Cockpit
Stem
RaceFace Aeffect R (40mm)
Handlebar
RaceFace Chester, XS/SM (800x20mm), MD/LG/XL/XXL (800x35mm)
Grips
ODI Elite Flow Lock-On
Headset
FSA No.57E
Seat
Saddle
SDG Bel Air 3
Seatpost
SDG Tellis, XS (125mm), SM (150mm), MD (170mm), LG (200mm), XL/XXL (230mm)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL | XXL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.427 mm | 1.43 mm | 1.365 mm | 1.319 mm | 1.271 mm | 1.228 mm |
| Bottom Bracket Height | 340 mm | 350 mm | 350 mm | 350 mm | 350 mm | 350 mm |
| Front Center | 737 mm | 767 mm | 796 mm | 826 mm | 855 mm | 885 mm |
| Rake | 37 mm | 44 mm | 45 mm | 44 mm | 44 mm | 44 mm |
| Trail | 132 mm | 134 mm | 133 mm | 134 mm | 134 mm | 134 mm |
| Stack | 592 mm | 615 mm | 621 mm | 633 mm | 642 mm | 651 mm |
| Reach | 415 mm | 430 mm | 455 mm | 480 mm | 505 mm | 530 mm |
| Top Tube Length | 534 mm | 557 mm | 586 mm | 614 mm | 642 mm | 670 mm |
| Seat Tube Angle | 79.2 ° | 78.7 ° | 77.9 ° | 77.3 ° | 76.8 ° | 76.5 ° |
| Seat Tube Length | 360 mm | 360 mm | 390 mm | 430 mm | 460 mm | 490 mm |
| Head Tube Angle | 64 ° | 64 ° | 64 ° | 64 ° | 64 ° | 64 ° |
| Head Tube Length | 100 mm | 100 mm | 110 mm | 120 mm | 130 mm | 140 mm |
| Chainstay Length | 434 mm | 442 mm | 442 mm | 446 mm | 446 mm | 446 mm |
| Wheelbase | 1171 mm | 1208 mm | 1237 mm | 1271 mm | 1300 mm | 1330 mm |
| Bottom Bracket Drop | 15 mm | 25 mm | 25 mm | 25 mm | 25 mm | 25 mm |
| Wheels | 27" | 29" | 29" | 29" | 29" | 29" |
| Rider Min Height | 143 cm | 154 cm | 164 cm | 175 cm | 184 cm | 190 cm |
| Rider Max Height | 160 cm | 170 cm | 182 cm | 190 cm | 200 cm | 207 cm |