Transition Sentinel Alloy GX - DEMO

Transition Sentinel Alloy GX - DEMO
  • Size: Medium
  • Size: Medium
  • Size: Medium
  • Size: Medium
  • Size: Medium
  • Size: Medium
  • Size: Medium
  • Size: Medium
This item is currently not available.


**DEMO BIKE- This bike is available for demo, you can ride it before you buy it. It is lightly used and in excellent condition. All Hyland Cyclery Demos are fully serviced and tuned before they're sold. See store associate for more info.

The Sentinel was designed for 29er haters. A bike so capable, playful and fun that even the most staunch 29er naysayer will instantly convert. With Transition's reverse mullet suspension configuration, the Sentinel stays responsive and playful while delivering incredible downhill monster truck capabilities. The new Speed Balanced Geometry is the crown jewel that unlocks 100% of the potential of this bike. With SBG you get total confidence when it comes to cornering and climbing that really sets this bike apart from the crowd.

Transition SBG Geometry


SBG ensures the bike maintains low speed agility, front wheel traction, and proper rider weight balance while actually increasing confidence in steep terrain and at high speeds. With SBG, a slacker head tube angle is combined with a all new reduced offset fork standard, preventing the front wheel from being too far in front of the rider. This improves front to rear weight distribution on the bike, which is often out of balance on long and slack bikes. One of SBG's greatest benefits is that it creates a confident steering feel that adapts to wheel speed. More stability when going fast, more agility on technical slow speed manuevering as well as improved traction, control and confidence for any skill level of rider.






REACH 425 450 475 500
STACK 617 617 626 635
EFFECTIVE TT LENGTH 568 593 622 650
SEAT TUBE LENGTH 360 400 440 490
EFFECTIVE SEAT ANGLE 77.5 76.8 76.3 75.8
HEAD TUBE LENGTH 100 100 110 120
CHAINSTAY LENGTH 435 435 435 435
WHEELBASE 1193 1218 1247 1277
ESTIMATED BB HEIGHT 345 345 345 345
STAND OVER HEIGHT 685 695 700 715
FORK OFFSET 43 43 43 43
Transition Sizing Chart


Frame Transition Sentinel Alloy 140mm travel
Fork RockShox Lyrik RC Solo Air 160mm
Headset FSA No.57E
Rear Shock Fox DPX2 Performance Elite
Rims/Wheels E*Thirteen TRS 30mm
Hubs Novatec D711SB & D462SB XD
Tires Maxxis Minion DHF / DHR II 2.3 EXO Dual
Crankset SRAM Descendent 6K (32t, 170mm)
Chain SRAM GX Eagle
Rear Derailleur SRAM GX Eagle
Rear Cogs SRAM XG 1275 (10-50t)
Shifters SRAM GX Eagle
Handlebars RaceFace Chester 35 (780mm x 35mm)
Tape/Grips Velo Single Clamp
Stem RaceFace Aeffect R (40mm)
Brakes SRAM Code R
Pedals N/A
Seat Post RockShox Reverb Stealth
Color(s) TR Blue, Black Powder
Sizes SM, MD, LG, XL
Weight 32.6 lbs. / 14.79 Kg

* Subject to change without notice.


Sentinel Shredding