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Sorry, this Transition Sentinel Alloy NX Mountain Bike - 2019, Medium has been sold.
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Transition Sentinel Alloy NX Mountain Bike - 2019, Medium

Item #BMT32292
Condition: Certified Pre-Owned
Fit Range: 5'6" - 5'10"

Trade In
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Every Certified Pre-Owned bike passes our multi-point inspection
  • Frame integrity verified
  • All components inspected
  • Drivetrain cleaned and tuned
  • Suspension adjusted
  • Wheels trued
Shipping

Our RideFast shipping means this bike gets to you quickly and securely. Domestic US ground rates are a flat $135 for regular bikes or $150 for e-bikes.

Quick Assembly
  • Bikes arrive tuned and mostly pre-assembled
  • Torque tool & video guide included
  • Get riding in 15 minutes
Canadian Customers

Please note that any duties, taxes, or surcharges as required by Canadian customs and provincial authorities will be the buyer's responsibility. Shipping to Canadian addresses may take longer than expected due to customs.

Guaranteed Buyback

We'll happily purchase this bike back from you when you're ready for your next upgrade. A TPC buyback offer is guaranteed for 18 month on all qualifying bikes.

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30-Day Returns

If this bike isn't perfect for you, our Ride Guides will help you find the right one.

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Unicorn's Do Exist

Why We Love It
The Sentinel is a mid-upper travel 29er steed that will give you confidence to hit lines and features you used to go around. Transition's "SBG" (Speed Balanced Geometry) ensure's the bike feels agile at slow speeds, stable at fast speeds, increases front wheel traction, and ensures proper rider weight distribution. Combine this stellar geometry with Transition's "Collet main pivot technology", which improves rear end stiffness as well as keeping your hardware tight (no one likes discovering missing hardware on their bike). Not just a fair weather rider? Don't worry, Transition has your back there as well with additional pivot bearing shields to keep contamination and moisture out so you can ride worry free. Looking through this bike, it truly feels like Transition has thought of every way to make our lives easier. Threaded bottom brackets, user friendly cable routing, ample tire clearance, frame protection in all the right places, and a gear mount under the top tube are just some of the amazing touches we love about this trail ripper. Its lively, it pops, it climbs, its truly a unicorn in the bike world.
Upgrades
  • RockShox Ultimate ZEB Ultimate front suspension w/ 160mm of travel
  • FOX Performance Elite FLOAT X rear shock
Master Mechanic’s Notes
  • Front suspension & rear shock have been professionally serviced by our in-house suspension experts and is ready to ride
  • New Specialized Eliminator GRID T9 2Bliss Ready tires & handlebar grips
  • Light scratches on the rims, fork lowers, top tube, & down tube
  • Light scratches & paint chips on the seat tube, seatstays, & chainstays
  • Light scratches on the brake levers, crank arms, & rear derailleur
  • Light oxidation on the brake levers
Specifications
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Details
Original MSRP $3,499.00
Year 2019
Brand Transition
Model Sentinel Alloy
Size Medium
Frame Material Aluminum
Drivetrain SRAM, 1x12 spd
Weight 35 lbs 8 oz
Build
Fork RockShox ZEB Ultimate
Fork Travel 160mm
Rear Shock FOX Performance Elite FLOAT X
Rear Shock Travel 140mm
Brakes SRAM Guide T, Disc Brakes - Hydraulic
Shifters SRAM NX Eagle, Mechanical
Rear Derailleur SRAM NX Eagle
Bottom Bracket Shell Threaded
Crankset Truvativ Stylo Alloy, 32t, 170mm
Cassette SRAM PG-1230, 11-50t
Chain SRAM
Handlebar Race Face Alloy, 760mm
Headset Wolf Tooth
Seatpost KS Lev Integra Dropper, 31.6mm
Seatpost Travel 150mm
Saddle Bontrager Arvada w/ Cr-Mo Rails
Front Axle Spacing 15x110mm Boost (Thru-Axle)
Rear Axle Spacing 12x148mm Boost (Thru-Axle)
Wheelset Race Face AR 30 Offset Aluminum Tubeless Compatible, SRAM MTH 716/746
Front Tire Specialized Eliminator GRID T9 2Bliss Ready, 29" x 2.3"
Rear Tire Specialized Eliminator GRID T9 2Bliss Ready, 29" x 2.3"
Tire Type Tubeless
Tubeless Compatibility Bike ships tubeless
Pedals Sold separately
Geometry
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Bike geometry chart
Inspected. Tested. Trusted.

What is CPO?

CPO bikes are gently ridden bikes that have been meticulously inspected, restored and serviced. Every CPO bike is cleaned, tuned and tested in our top-of-the-line Colorado headquarters. Road, mountain, ebike or gravel, TPC services each bike over 8 phases and multiple points of inspection.

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Bikes are meant
to be used.