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Transition Sentinel Mountain Bike - 2021, XX-Large
Item #BMT20840
Condition: Certified Pre-Owned
Fit Range: 6'4" - 6'8"
Shipping & Assembly
Shipping
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.
Our Guarantee
Expert Pro-Tune
- Frame integrity verified
- All components inspected
- Drivetrain cleaned and tuned
- Suspension adjusted
- Wheels trued
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.
Returns
30-Day Returns
If this bike isn't perfect for you, our Ride Guides will help you find the right one.
Specifications
Details
Year | 2021 |
Brand | Transition |
Model | Sentinel |
Size | XX-Large |
Frame Material | Carbon Fiber |
Drivetrain | Shimano, 1x11 spd |
Weight | 33 lbs 15 oz |
Build
Fork | Manitou M3ZZ3R |
Fork Travel | 160mm |
Rear Shock | FOX Factory Series FLOAT X2 |
Rear Shock Travel | 150mm |
Brakes | Hayes Dominion, Disc Brakes - Hydraulic |
Shifters | Shimano XTR M9000, Mechanical |
Rear Derailleur | Shimano XT M8000 |
Bottom Bracket Shell | Threaded |
Crankset | Shimano XT M8100 Alloy w/ OneUp Components SWITCH oval chainring, 28t, 175mm |
Cassette | Shimano SLX M7100, 11-46t |
Chain | Shimano |
Handlebar | ProTaper Alloy, 810mm |
Headset | Cane Creek Hellbender |
Stem | Nukeproof HZN Alloy, 31.8mm x 55mm, 0° |
Seatpost | OneUp, 31.6mm |
Seatpost Travel | 210mm |
Saddle | WTB Volt |
Front Axle Spacing | 15x110mm (Boost) |
Rear Axle Spacing | 12x148mm Boost |
Wheelset | SUNRingle Duroc SD37 Aluminum Tubeless Compatible, Industry Nine 1/1 |
Front Tire | Teravail Kessel Grip Durable Tubeless, 29" x 2.6" |
Rear Tire | Teravail Kessel Grip Durable Tubeless, 29" x 2.6" |
Tire Type | Tubeless |
Tubeless Compatibility | Bike ships tubeless |
Pedals | Sold separately |
Geometry

Fit Range |
6'4" - 6'8"
|
A. Effective Top Tube | 665 mm |
B. Seat Tube | 490 mm |
C. Seat Tube Angle | 76° |
D. Head Tube Angle | 63.6° |
E. Head Tube | 140 mm |
F. Stack | 649 mm |
G. Reach | 521 mm |
H. Standover Height | 722 mm |
I. Saddle Height Range | 740 - 860 mm |
Transition Sentinel Mountain Bike - 2021, XX-Large
Item #BMT20840
Condition: Certified Pre-Owned
Fit Range: 6'4" - 6'8"
Shipping & Assembly
Shipping
Your bike ships fast for a $94.99 flat rate.
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.
Our Guarantee
Expert Pro-Tune
- Frame integrity verified
- All components inspected
- Drivetrain cleaned and tuned
- Suspension adjusted
- Wheels trued
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.
Returns
30-Day Returns
If this bike isn't perfect for you, our Ride Guides will help you find the right one.
Bikes are meant
to be used.
Ask a Ride Guide about this
Transition Sentinel Mountain Bike - 2021, XX-Large
Sizing Guide
The chart below provides a general suggested range of heights and is not exact. Sizing may vary across brands.
The tailoring of any bike is an important step in the long term enjoyment of riding and it can take time to adjust to the fit of a new bike. All contact points (pedals, shoes, and saddle) can be changed and altered for personal preference, performance, and comfort.
Measured Frame Size | Frame Size | Min Rider Height | Max Rider Height |
---|---|---|---|
13 in | XS | 4' 10" | 5' 2" |
15 in | Small | 5' 2" | 5' 6" |
17 in | Medium | 5' 6" | 5' 10" |
19 in | Large | 5' 10" | 6' 2" |
21 in | XL | 6' 2" | 6' 5" |
Contact our Ride Guides if you have any questions about the fit of your new bike.
866.401.9636 - Contact the Ride Guides