Transition Sentinel Alloy GX

Transition Sentinel Alloy GX
  • Color: Pinot Noir Red
  • Color: Gunmetal Grey
Pinot Noir Red
Please select options
The manufacture currently does not permit this item to be shipped, however it can be purchased online and picked up in the store. If this item is purchased in the store we can ship it anywhere you'd like.


When it comes to the old saying, riding is believing, it couldn't be more true for the Sentinel. This bike will scramble your brain as to how capable it is, how rowdy it can get, yet how composed it is as an all-around trail bike. The Sentinel has amazed critics and earned the title of one of the most downhill attacking long travel 29ers available. But, don't let all that monster truck talk fool you into thinking this is a one trick pony, the Sentinel delivers going up and down thanks to our Speed Balanced Geometry. Sure we could spend days ranting on and on about how much we love this bike and all its technical features, but it would be a lot easier if you just throw a leg on one and take it for a ride.

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 Sentinel Alloy 140mm Rear/160mm Front
Fork Fox 36 Grip 2 Performance Elite 160mm
Headset FSA No.57E
Rear Shock Fox DPX2 Performance Elite
Rims/Wheels Stans Flow S1 Team
Tires Front - Maxxis Minion DHF 3C WT (29x2.5); Rear - Maxxis Minion DHRII 3C WT (29x2.4)
Crankset SRAM Descendent 6K DUB (170mm x 30t)
Chain SRAM GX Eagle
Front Derailleur N/A
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 ODI Elite Flow
Stem RaceFace Aeffect R (40mm)
Brakes SRAM Code RSC
Pedals N/A
Saddle ANVL Forge Cromo
Seat Post RockShox Reverb Stealth 1x Remote
Color(s) Pinot Noir Red, Gunmetal Grey
Sizes SM, MD, LG, XL, XXL
Weight 33.74 lbs / 15.31 kg

* Subject to change without notice.


Sentinel Stoke

Part Numbers

Option MPN Store SKU
Pinot Noir Red / Large TRA42106661D