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The Rowdy Dinner Guest
Designed to let loose at any moment but still maintain some table manners

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 and composed it is as an all-around trail bike while begging you to open the throttle wide open. 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.


AVAILABLE COLORS:   GUNMETAL GRAY     PINOT NOIR  

STEP 1. SELECT BUILD
  $5,999 $4,799 USD
  $4,999 $3,999 USD

  $3,999 $3,199 USD
  $4,399 $3,519 USD

  $3,199 $2,559 USD
  $2,999 $2,399 USD

  $1,999 $1,599 USD
STEP 2. SELECT SIZE AND COLOR
  
Small    Out-of-Stock
  
Small    Out-of-Stock

  
Medium    In-Stock
  
Medium    In-Stock

  
Large    In-Stock
  
Large    In-Stock

  
X-Large    In-Stock
  
X-Large    In-Stock


Add To Cart    $5,999.00 $4,799.20 USD 

IN STOCK: This item will ship within 2 business days

PRICE $5999 USD $4999 USD $3999 USD $4399 USD $3199 USD $2999 USD $1999 USD
FRAME Sentinel Carbon 140mm Sentinel Carbon 140mm Sentinel Carbon 140mm Sentinel Alloy 140mm Sentinel Alloy 140mm Sentinel Carbon 140mm Sentinel Alloy 140mm
REAR SHOCK Fox DPX2 Performance Elite Fox DPX2 Performance RockShox Deluxe RT Fox DPX2 Performance Elite RockShox Deluxe RT Fox DPX2 Performance Elite Fox DPX2 Performance Elite
FORK Fox 36 Grip 2 Performance Elite 160mm Fox 36 Grip Performance 160mm Rockshox Yari RC Charger Damper 160mm Fox 36 Grip 2 Performance Elite 160mm Rockshox Yari RC Charger Damper 160mm
HEADSET Cane Creek 40 Series FSA No.57E FSA No.57E FSA No.57E FSA No.57E
STEM ANVL Swage (40mm) RaceFace Aeffect R (40mm) RaceFace Aeffect R (40mm) RaceFace Aeffect R (40mm) RaceFace Aeffect R (40mm)
HANDLEBAR ANVL Mandrel Alloy 35 RaceFace Chester 35 RaceFace Chester 35 RaceFace Chester 35 RaceFace Chester 35
GRIPS ODI Elite Flow ODI Elite Flow Velo VLG-1812D2 ODI Elite Flow Velo VLG-1812D2
SADDLE ANVL Forge Ti ANVL Forge Cromo WTB Silverado Comp ANVL Forge Cromo WTB Silverado Comp
SEATPOST RockShox Reverb Stealth 1x Remote RockShox Reverb Stealth RKS Lev Integra RockShox Reverb Stealth 1x Remote RKS Lev Integra
BRAKES SRAM Code RSC SRAM Code R SRAM Guide T SRAM Code RSC SRAM Guide T
ROTORS SRAM Centerline (200/180mm) SRAM Centerline (200/180mm) SRAM Centerline (200/180mm) SRAM Centerline (200/180mm) SRAM Centerline (200/180mm)
SHIFTER SRAM XO1 Eagle SRAM GX Eagle SRAM NX Eagle SRAM GX Eagle SRAM NX Eagle
DERAILLEUR SRAM XO1 Eagle SRAM GX Eagle SRAM NX Eagle SRAM GX Eagle SRAM NX Eagle
CASSETTE SRAM XG 1275 (10-50t) SRAM XG 1275 (10-50t) SRAM PG 1230 (11-50t) SRAM XG 1275 (10-50t) SRAM PG 1230 (11-50t)
CHAIN SRAM GX Eagle SRAM GX Eagle SRAM NX Eagle SRAM GX Eagle SRAM NX Eagle
CRANK SRAM Descendent Carbon DUB (30t) SRAM Descendent 6K DUB (30t) SRAM NX Eagle DUB (30t) SRAM Descendent 7K DUB (30t) SRAM NX Eagle DUB (30t)
WHEELSET Stans Flow MK3 Team Stans Flow S1 Comp WTB STi29/Novatech D791SB/D462SB Stans Flow S1 Comp WTB STi29/Novatech D791SB/D462SB
TIRE/FRONT Maxxis Minion DHF 3C WT (29x2.5) Maxxis Minion DHF 3C WT (29x2.5) Maxxis Minion DHF Dual WT (29x2.5) Maxxis Minion DHF 3C WT (29x2.5) Maxxis Minion DHF Dual WT (29x2.5)
TIRE/REAR Maxxis Minion DHRII 3C WT (29x2.4) Maxxis Minion DHRII 3C WT (29x2.4) Maxxis Minion DHRII Dual WT (29x2.4) Maxxis Minion DHRII 3C WT (29x2.4) Maxxis Minion DHRII Dual WT (29x2.4)
WEIGHT 30.488 lbs / 13.83 kg (Size Md) 31.58 lbs / 14.33 kg (Size Md) 31.80 lbs / 14.42 kg (Size Md) 33.74 lbs / 15.31 kg (Size Md) 34.67 lbs / 15.72 kg (Size Md) 6.8 lbs / 3.1 Kg (Size Md w/shock) 9.3lbs. / 4.2 Kg (Size Md w/shock)
Specs are subject to change at any time.


Speed Balanced 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 maneuvering as well as improved traction, control and confidence for any skill level of rider.


SM MD LG XL XXL*
REACH 425 450 475 500 515
STACK 617 617 626 635 644
EFFECTIVE TT LENGTH 568 593 622 650 666
SEAT TUBE LENGTH 360 400 440 490 510
EFFECTIVE ST ANGLE 77.5 76.8 76.3 75.8 75.5
SADDLE HEIGHT FOR EFFECTIVE ST ANGLE 600 660 720 780 820
HEAD TUBE LENGTH 100 100 110 120 130
HEAD TUBE ANGLE 64.0 64.0 64.0 64.0 64.0
CHAINSTAY LENGTH 435 435 435 435 435
WHEELBASE 1193 1218 1247 1277 1296
BOTTOM BRACKET DROP 30 30 30 30 30
ESTIMATED BB HEIGHT 345 345 345 345 345
STAND OVER HEIGHT 685 695 700 715 720
FORK OFFSET 43 43 43 43 43


*XXL Size Only Available in Alloy Frame Material

GIDDYUP 2.0HH SUSPENSION

Take our successful GiddyUp suspension system, add one part increased pedaling efficiency, two parts wider sag range, and three parts increased small bump sensitivity, and you get GiddyUp 2.0HH. Incredible pedaling performance balanced with a superb neutral, comfortable and fun feel that we're known for.

We specifically tuned the suspension with a moderate amount of chain growth which is highest at the sag point and decreasing deeper into the travel. Because of this finely tuned wheel path, there is a notable increase in traction when climbing, without the rider noticing the chain growth fighting the suspension movement.

GiddyUp 2.0HH is extremely easy to setup and it provides excellent support throughout the entire stroke of the shock so you can use all your travel without worrying about bottom out. Designed to be active while climbing, rear shock climbing platforms are not necessary. The suspension remains free to smooth out the trail, improve traction and control without sacrificing efficiency. With GiddyUp 2.0HH you can focus on the trail, no remotes, levers or knobs. Just grab your bike and GiddyUp.




"On demanding trails, the Transition Sentinel leaves its competition in a cloud of dust. For those who really like it hard and have a strong urge to go as fast as possible, this is the bike. Considering how well it descends, this bike is not bad at climbing either." - Enduro Magazine - Click here for the full article


"It has a balanced riding position, great traction and isn't a handful in the tight stuff. The Sentinel really benefits from being ridden hard, 'the faster this bike is pushed the more you get from it' were notes from our tester Ieuan after reviewing this bike." - Dirt 100 - Click here for the full article


"This bike appears to be the future of MTB. It was not so long ago we dreamed of a bike that had the capability of speed, handling, descending and climbing. A bike you could take out of the shed and do it all; ride it one weekend and race it the next. Well people, this is the real deal and no doubt one of the most capable all-round speed machines we have tested." - Revolution Magazine - Click here for the full review


"If there's a design-focused arms race occurring in mountain biking, one needs look no further than Transition as a key protagonist in the current push toward ever-longer and more-aggressive geometry. it should come as absolutely no surprise that the Sentinel is most at home bombing downhill. It does this ridiculously well, straight-lining the roughest, ugliest, sketchiest descents with a supreme confidence that borders on disdain." - The Bike Bible Review - Click here for the full review


"The Sentinel is an absolute beast when it comes time to descend, a downright monster when the trail turns steep and rough. There are plenty of long-travel 29ers out there that can handle the Whistler Bike Park, but when it comes to tackling the steepest, chunkiest trails there aren't many that can match the Sentinel's performance. " - Mike Kazimer (Pinkbike.com) - Click here for the full review


Frame Specifications


REAR TRAVEL: 140mm
FRONT TRAVEL: 160mm
WHEEL SIZE: 29"
SIZES: SM, MD, LG, XL, XXL (Alloy Only)
COLORS: Pinot Noir, Gunmetal Gray, TR Blue, Black Powder
FRAME BEARINGS: 2x 6903, 2x 6902, 4x 6802, 2x 3802, 2x 6900
FORK AXLE TO CROWN: 571mm
FORK OFFSET: 42mm (Rockshox) | 44mm (Fox)
REAR SHOCK SIZE: 205mm x 57.5mm
SHOCK HARDWARE: Trunion Mount Top / 25mm x 8mm Bottom
HEADSET (TOP): 44mm Zero Stack
HEADSET (BOTTOM): 56mm Zero Stack
BB SHELL: 73mm BSA Threaded
REAR BRAKE MOUNT: 180mm Post Mount
REAR AXLE: Syntace X12 148, with a 1.0mm thread pitch
ISCG TABS: ISCG05
SEATPOST DIAMETER: 31.6mm
SEAT CLAMP: Alloy | 34.9mm
Carbon | 37mm
MAX SEATPOST INSERTION:     Alloy | Small 140mm, Medium 185mm, Large 225mm, XL 270mm, XXL 290mm
Carbon | Small 190mm, Medium 225mm, Large 245mm, XL 245mm
MAX CHAINRING SIZE: 34T Single Ring
MAX TIRE SIZE: 29 x 2.5
AIR SHOCK SAG: 18-20mm (32-35%)
MAX PSI FOX DPX2: 300 PSI




TRANSITION BICYCLE COMPANY | 1600 Carolina Street Bellingham, WA 98229 | (360) 366-4960 info@transitionbikes.com