2020 Transition Sentinel Alloy Frameset - UK Stock

  • Sale
  • £1,249.00
  • Regular price £1,799.00
  • 4 available
Tax included.

Please note we are listing UK stock for these sale frames so shipping will be a few days longer :)

The Sentinel Alloy frameset is the perfect starting point to create the custom bike that suits your riding style. The heat treated hydroformed alloy frameset is perfect for those who want durability and strength at a great value. The alloy frame shares the exact same geometry and suspension setup as the carbon version. For rear suspension, we worked tirelessly with Fox to create the perfect tune with the extremely impressive DPX2 rear shock. Amazing small bump sensitivity like a coil shock and excellent mid-stroke support and bottom out control. The Sentinel Alloy Frameset features a threaded BB, external rear brake routing for easy brake maintenance, full water bottle storage inside the main triangle, boost rear end and rubber molded frame protection.

Available Colours: Pinot Noir Red, Gunmetal Grey
Rear Shock: Fox DPX2 Performance Elite

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

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
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