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The Sentinel Carbon GX Sits Right In The Middle Of Our Product Line As A Workhorse Spec That Gives You All The Important Parts You Need On A Carbon Frameset ..

2020 Transition Sentinel Carbon GX Full Sus Mountain Bike in Grey

Star buys 30% off Selected Pedals With Every Bike When you add 2020 Transition Sentinel Carbon GX Full Sus Mountain Bike in Grey to your basket today.
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

The Current Estimated Delivery Date is Undetermined
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2020 Transition Sentinel Carbon GX Full Sus Mountain Bike in Grey

Season : 2020

Brand : Transition


The Sentinel Carbon GX sits right in the middle of our product line as a workhorse spec that gives you all the important parts you need on a carbon frameset at a great price. For suspension, you get a similar Fox DPZ2 performance rear shock found on Transitions XO1 build kit as well as the always impressive Fox 36 with the new grip damper. For the drivetrain, 12spd GX eagle has a massive range (50-10 tooth) for getting you up super steep climbs. The build continues to punch above its weight class by offering 4 piston code r brakes for superior stopping power and fade resistance, stans flow s1 comp complete wheelset, and our favorite 3c maxxis minion tires. We purposely built this spec so you didn't need to upgrade a single part on this bike, just set and forget.

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 SBGs, 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.

Giddyup 2.0hh Suspension

Take Transitions 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 they're known for.

They 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.

  • €5,290.87
  • $7,261.49
  • $6,889.51
  • $7,844.56
  • $5,148.40
  • CHF4,757.07
  • kr55,841.26
  • kr713,411.94
  • kr39,390.30
  • kr48,803.05
  • ¥543,542.19
  • Delivery Informationa

    All parts and accessories orders over £40 to Mainland UK addresses will be dispatched FREE via a tracked 48hr service (orders under £40 will incur a £4.50 delivery charge).

    Bikes over £350 are dispatched FREE via TNT with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).

    *Bikes with a value of under £350 will incur a delivery charge of £15

    Cycle To Worka

    Spread the cost of your new bike, helmet, safety equipment and accessories paying via instalments being taken directly from your wage. The payments for the Cycle To Work scheme are taken out of your gross wage and your Tax & NI contributions are then worked out based on your new lower gross wage which is how you save money on your new bike and equipment.

    At the end of the time period specified with your Cycle To Work scheme you then have the option of buying your bike or to continuing to use it while you work for the company. If you decide to purchase the bike, the balance you owe will be based on a percentage of how much the bike was worth at the time you took out the Cycle To Work scheme.

    Find out more

    What's In The Box?a

    We know how eager you'll be to jump on your new bike and hit the dirt or tarmac, so we give you everything you need to get you set up quickly. For full instructions on how you're bike will arrive and what you'll need to do, visit our How Our Bikes Are Built page

    Easy Set-Up Instructions
    Have your brand spanking new bike ready to ride in less than 15 minutes with our easy to follow guide.

    Free Multi-Tool
    9 in 1 multi-tool to help you set up and maintain your bike.

    Free Pedal Spanner
    Attach your pedals with ease using our free tool. Please note pedals are not included with all bikes so please check the specification. You can shop our awesome range of pedals HERE

    Special Offer

    30% Off Selected Pedals With All Bikes

    Get 30% off a select range of pedals when you purchase a bike from Hargroves Cycles. Once you add the bike to cart you will be taken the pedal selection page to add your half-price pedals, discount will be applied at the checkout.

    Find Out More
    Technical Information

    Frame - Sentinel Carbon 140mm Rear/160mm Front

    Fork - Fox 36 Grip Performance 160mm

    Rear Shock - Fox DPX2 Performance

    Headset - FSA No.57E

    Derailleur - SRAM GX Eagle

    Shifters - SRAM GX Eagle

    Brakes - SRAM Code R

    Rotors - SRAM Centerline (180mm)

    Crank - SRAM Descendent 6K DUB (170mm x 30t)

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

    Stem - RaceFace Aeffect R (40mm)

    Grips - ODI Elite Flow

    Pedals - Not Supplied

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

    Saddle - ANVL Forge Cromo

    Chain - SRAM GX Eagle

    Cassette - SRAM XG 1275 (10-50t)

    Wheelset - Stans Flow S1 Comp

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

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

    Weight - 31.58 lbs / 14.33 kg

    Sizing Information
      S M L XL
    Reach 425mm 450mm 475mm 500mm
    Stack 617mm 617mm 626mm 635mm
    Effective tt length 568mm 593mm 622mm 650mm
    Seat tube length 360mm 400mm 440mm 490mm
    Effective st angle 77.5 76.8 76.3 75.8
    Head tube length 100mm 100mm 110mm 120mm
    Head tube angle 64 64 64 64
    Chainstay length 435mm 435mm 435mm 435mm
    Wheelbase 1193mm 1218mm 1247mm 1277mm
    Bottom bracket drop 30mm 30mm 30mm 30mm
    Estimated bb height 345mm 345mm 345mm 345mm
    Stand over height 685mm 695mm 700mm 715mm
    Fork offset 43mm 43mm 43mm 43mm
    Ineffective toptube* 1.442pc 1.523pc 1.604pc 1.685pc
    Downtube angle 60 60 60 60
    Stance** 680mm 680mm 680mm 680mm
    Rocker eye to eye 185mm 185mm 185mm 185mm



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