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If You're Looking For The Best Parts You Can Get For A Great Price, Our Sentinel Alloy GX Will Tick Every Box. We Know Suspension Performance Is King So We G..
If You're Looking For The Best Parts You Can Get For A Great Price, Our Sentinel Alloy GX Will Tick Every Box. We Know Suspension Performance Is King So We G..
Transition

2020 Transition Sentinel Alloy GX Full Sus Mountain Bike in Grey

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At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged. In the event an item is returned to ourselves in an unsuitable condition, we may have to return the item or offer a partial refund. Unless the return is due to a faulty product or an incorrect delivery on our part you will have to cover the cost of the return. If you believe that we should be covering the cost of the return please contact us in advance to discuss the available options.

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Please contact us prior to returning so we can ensure the fastest suitable resolution for you: websales@99bikes.co.uk. We also ask that you contact us before having a 3rd party undertake work on an item purchased from 99 Bikess. Any work carried out without 99 Bikes consent will not be eligible for reimbursement and may void future warranty claims for that item.

2020 Transition Sentinel Alloy GX Full Sus Mountain Bike in Grey

Season:2020

Brand:Transition

Code:YRGNUGYRG.XG.YLA.TNES.02.

If you're looking for the best parts you can get for a great price, our sentinel alloy GX will tick every box. We know suspension performance is king so we give you the same Fox fork and rear shock we spec on our top of the line sentinel carbon xo1. The drivetrain is GX eagle with a massive gear range that is the new standard for performance and value. Along with top of the line suspension, we give you killer 4 piston code rsc brakes that are a crowd favorite here at transition. We finish the build with rock-solid stans flow s1 team complete wheelset and the best maxxis minion 3c tires you can buy. The sentinel alloy GX is a true riders bike that wants top performing parts that can appreciate a tried and true alloy frameset that can charge all day.

Available colours: pinot noir red, gunmetal grey

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.

Sentinel Geometry

  S M L XL XXL
reach 425mm 450mm 475mm 500mm 515mm
stack 617mm 617mm 626mm 635mm 644mm
effective tt length 568mm 593mm 622mm 650mm 666mm
seat tube length 360mm 400mm 440mm 490mm 510mm
effective st angle 77.5 76.8 76.3 75.8 75.5
head tube length 100mm 100mm 110mm 120mm 130mm
head tube angle 64 64 64 64 64
chainstay length 435mm 435mm 435mm 435mm 435mm
wheelbase 1193mm 1218mm 1247mm 1277mm 1296mm
bottom bracket drop 30mm 30mm 30mm 30mm 30mm
estimated bb height 345mm 345mm 345mm 345mm 345mm
stand over height 685mm 695mm 700mm 715mm 720mm
fork offset 43mm 43mm 43mm 43mm 43mm
ineffective toptube* 1.361pc 1.442pc 1.523pc 1.604pc 1.685pc
downtube angle 60 60 60 60 60
stance** 680mm 680mm 680mm 680mm 680mm
rocker eye to eye 185mm 185mm 185mm 185mm 185mm

 

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.

Frame Features  
fork axle to crown 571mm
fork offset 42mm (rockshox) / 44mm (fox)
rear shock size 205mm x 57.5mm
rear shock hardware trunion bearing mount top / 25mm x 8mm bottom
bearings full enduromax sealed cartridge bearings
headset 44mm zero stack (top) / 56mm zero stack (bottom)
bottom bracket 73mm bsa threaded
rear brake 180mm post mount
rear axle syntace x12 148
front derailleur no support
iscg tabs iscg05
seatpost diameter 31.6mm
max seatpost insertion alloy small 140mm, medium 185mm, large 225mm, xl 270mm, xxl 290mm
max seatpost insertion carbon small 190mm, medium 225mm, large 245mm, xl 245mm
seat clamp alloy 34.9mm/carbon 37mm
maximum chainring 34t
maximum tire 29 x 2.5
sag setup 18-20mm (32-35%)
frame weight
(medium with shock)
carbon 7.05 lbs. - 3.2 kg alloy 9.61 lbs. - 4.36 kg
warranty 3 year we got your back warranty

 

Technical Information

Frame - Sentinel Alloy 140mm Rear/160mm Front

Fork - Fox 36 Grip 2 Performance Elite 160mm

Rear Shock - Fox DPX2 Performance Elite

Headset - FSA No.57E

Derailleur - SRAM GX Eagle

Shifters - SRAM GX Eagle

Brakes - SRAM Code RSC

Rotors - SRAM Centerline (180mm)

Crank - SRAM Descendent 7K DUB (170mm x 30t)

Handlebar - RaceFace Chester 35 - SM/MD (780 x 20mm) - LG/XL/XXL (780 x 35mm)

Stem - RaceFace Aeffect R (40mm)

Grips - ODI Elite Flow

Pedals - Not Supplied

Seat Post - RockShox Reverb Stealth 1x Remote - SM (125mm)- MD (150mm) - LG/XL/XXL (170mm)

Saddle - ANVL Forge Cromo

Chain - SRAM GX Eagle

Cassette - SRAM XG 1275 (10-50t)

Wheelset - Stans Flow S1 Team

Front Tyre - Maxxis Minion DHF 3C WT (29x2.5)

Rear Tyre - Maxxis Minion DHRII 3C WT (29x2.4)

Weight - 33.74 lbs / 15.31 kg

Sizing Information
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