2021 Transition Patrol - Everything You Need To Know

2021 Transition Patrol

It's official, the 2021 Transition Patrol is the 160 mm mixed wheel size* bike the internet clairvoyants predicted!  Available in alloy only, the new bike's geometry is enduro teetering on the edge of bike park - Transition say you can run a 180 mm 27.5 dual crown fork if you're that way inclined. Small and medium frames have shorter chain stays than the large and XL frames (434 and 440 mm respectively). 

There's adjustable geometry through the flip chip in the shock mount and headset adjustment. From what Transition have told us, we think the higher position would be where you would probably keep the bike for our trails, maybe using the lower position for uplift days or holidays in the Alpine bike parks. The straight 56 mm headtube is a new design that lets you change the angle or the reach by changing headset cups.

2021 Transition Patrol Raw

Transition have worked on the kinematics of this and the other new model being launched this week ;) to offer better mid-travel support, so the bike should feel better pedalling and pumping though sections. Off-the-top sensitivity has also been improved for small bump compliance.

Frames have protection on the chainstay and seat stay, we well as a shuttle guard under the downtube. The frame has an accessory mount under the top tube as well as bottle mounts, pretty much what you'd expect from a new bike in 2021. We asked Transition if there will be a carbon Patrol, the answer was a vague "we're always working on things", but they hinted that while they think they've got the mixed wheel size geometry and sizing bang on, it's a new category of bikes, and maybe they will bring a carbon version to the market once they've proven there's demand. Other than the Specialized Status, we can't think of any other mixed wheel bikes other than a few niche brands, so it's probably fair enough to say it's a new category! If you've ridden a Status, you're probably very much looking forward to trying the new Patrol.

There's a limited number of Deore spec bikes due in the first deliveries, in future an NX spec bike will replace it. This is all very "2021" - Transition cite component supply shortages as the reason.

If you're going to run the bike with 170 mm rear travel, this year's Fox X2 shock can be adjusted without a full strip down - you can remove the spacer while doing an air can service. The Super Deluxe equipped models can be adjusted, but that requires a full strip down. While we're talking about shocks, Transition say you can run the bike with whatever shock you like, but that the development of the revised linkage was done on the shocks fitted to the bikes.

Another nice detail that is the use of a SRAM universal mech hanger. If you're not familiar with this concept, it's a stroke of genius! Basically the SRAM hanger fits a huge number of bikes across as all brands, so you're not relying on being able to get exactly the right hanger for your bike from the local shop. Using this hanger relies on the bike manufacturer speccing the bike when they design it, so well done to Transition for making this choice.

Available as complete bikes or as a frame only, we'll have the first deliveries in June with more arriving through July and August. If you would like to order a bike, please call us on 01330 828562 to leave a deposit. (You can read more about ordering bikes from 20Twenty here.)

We've put all the information we have so far on this page, so scroll on for the geo, spec choices and prices.

*Transition are calling it "mixed wheel size", not "mullet"!

Transition Patrol 2021 Geometry

High Setting

Small

Medium

Large

X-Large

Reach

420

455

480

510

Stack

623

623

632

641

Effective TT Length

540

575

603

636

Seat Tube Length

360

390

430

460

Effective ST Angle

79.6

78.8

78.1

77.5

Saddle Height For Effective ST Angle

600

660

720

780

Actual ST Angle

70.5

70.5

70.5

70.5

Seat Tube Offset At BB

100

100

100

100

Headtube Length

100

100

110

120

Head Tube Angle

63.5

63.5

63.5

63.5

Chainstay Length

434

434

440

440

Wheelbase

1196

1231

1266

1301

Bottom Bracket Drop (From Rear Axle)

15

15

15

15

Estimated BB Height

340

340

340

340

Stand Over Height

675

690

705

720

Fork Offset

44

44

44

44

Low Setting (Approx.)

Small

Medium

Large

X-Large

Reach

420

455

480

510

Stack

628

628

637

646

Effective TT Length

543

578

606

639

Seat Tube Length

360

390

430

460

Effective ST Angle

79.1

78.3

77.6

77.0

Saddle Height For Effective ST Angle

600

660

720

780

Actual ST Angle

70.0

70.0

70.0

70.0

Seat Tube Offset At BB

100

100

100

100

Headtube Length

100

100

110

120

Head Tube Angle

62.5

62.5

62.5

62.5

Chainstay Length

436

436

442

442

Wheelbase

1198

1233

1268

1303

Bottom Bracket Drop (From Rear Axle)

22

22

22

22

Estimated BB Height

333

333

333

333

Stand Over Height

685

700

715

730

Fork Offset

44

44

44

44


Transition Patrol 2021 Spec Comparisons

We think all models have great spec out-the-box, but if there's anything you'd like to change or upgrade, we can help!  (The blue bike in the pictures is a pre-production model - there are no bikes with Fox Performance forks).

Spec names in table below link to the bike pages.

Model

Patrol Alloy XT

Patrol Alloy GX

Patrol Alloy Deore

Patrol Alloy Frameset

UK Price

£5,399.95

£4,699.95

£3,699.95

£2,199.95

Rear Shock

Fox Float X2 Factory 2 Position (160 mm Travel/205x60 mm)

ROCKSHOX Super Deluxe Ultimate Air (160 mm Travel/205x60 mm)

Fox Float DPX2 Performance (160 mm Travel/205x60 mm)

Fox Float X2 Factory 2 Position (160 mm Travel/205x60 mm)

Fork

Fox Float 38 Grip 2 Factory 29 (160 mm Travel/44 mm Offset)

RockShox ZEB Ultimate (160 mm Travel/44 mm Offset)

Marzocchi Bomber Z1 Air 29 (160 mm Travel/44 mm Offset)

Headset

FSA NO.55R/57

FSA NO.55R/57

FSA NO.55R/57

FSA NO.55R/57

Stem

ANVL Swage (40 mm)

ANVL Swage (40 mm)

RaceFace Aefect R (40 mm)

Bar

ANVL Mandrel Alloy

ANVL Mandrel Alloy

RaceFace Chester

Grips

Sensus Lite

Sensus Lite

Sensus Lite

Sadde

ANVL Forge Cromo or WTB Silverado

ANVL Forge Cromo or WTB Silverado

ANVL Forge Cromo or WTB Silverado

Cromo

Seatpost

OneUp Dropper Post

OneUp Dropper Post

OneUp Dropper Post

Brakes

Shimano XT M8120

SRAM Code RSC

Shimano Deore M6120

Rotors

Shimano RT86 (203 mm)

SRAM Centerline (200 mm)

Shimano RT70 (203 mm)

Shifter

Shimano XT M8100

SRAM GX Eagle

Shimano Deore M6100

Derailleur

Shimano XT M8100

SRAM GX Eagle

Shimano Deore M6100

Cassette

Shimano XT M8100 (10-51t)

SRAM XG 1275 (10-52t)

Shimano Deore M6100 (10-51t)

Chain

Shimano XT M8100

SRAM GX Eagle

Shimano Deore M6100

Crank

Shimano XT M8100 (32t/165 mm)

SRAM GX Alloy DUB (32t/165 mm)

RaceFace Aeffect R (32t/165 mm)

Chainguide

OneUp Bash Guide V2

OneUp Bash Guide V2

OneUp Bash Guide V2

Wheelset/Rims

DT Swiss EX 1700 Spline 30

Stans Flow S1

Stans Flow D

Spokes

DT Swiss Competition

Sapim Race Double Butted

Pillar Double Butted

Hubs

DT Swiss 350 Straight Pull 36SL

Stans Neo Durasync

Shimano MT410-B

Front Tyre

Schwalbe Magic Mary, Super Trail, Soft (29x2.4)

Schwalbe Magic Mary, Super Trail, Soft (29x2.4)

Schwalbe Magic Mary, Super Trail, Soft (29x2.4)

Rear Tyre

Schwalbe Big Betty, Super Trail, Soft (27.5x2.4)

Schwalbe Big Betty, Super Trail, Soft (27.5x2.4)

Schwalbe Big Betty, Super Trail, Soft (27.5x2.4)

Other

Tubeless Valves & Stans Sealant (6oz)

Tubeless Valves & Stans Sealant (6oz)

Tubeless Valves & Stans Sealant (6oz)

 

Frame Specs

REAR TRAVEL: 160 mm (Compatible with 170 mm)
FRONT TRAVEL: 160 mm (Compatible with 170 mm single crown fork or dual crown forks)
WHEEL SIZE: 29" Front / 27.5" Rear
SIZES: SM, MD, LG, XL
COLORS: Blueberry, Raw
FRAME BEARINGS: 2x 6903, 2x 6902, 4x 6802, 2x 3802, 2x 6900
FORK AXLE TO CROWN: 574 mm at 160 mm (Includes headset)
FORK OFFSET: 44 mm
REAR SHOCK SIZE: 205 mm x 60 mm (Compatible with 205 mm x 65 mm)
SHOCK HARDWARE: Trunnion Mount Top / 30 mm x 8 mm Bottom
HEADSET (TOP): 56 mm Zero Stack
HEADSET (BOTTOM): 56 mm Zero Stack
BB SHELL: 73 mm BSA Threaded
CHAINLINE: 52 mm
REAR BRAKE MOUNT: 180 mm Post Mount, Max Rotor Size 223 mm
Derailleur Hanger: SRAM UDH spec
REAR AXLE: Syntace X12 148, 1.0 mm Thread Pitch
ISCG TABS: ISCG05
SEATPOST DIAMETER: 31.6 mm
SEAT CLAMP: 34.9 mm
MAX SEATPOST INSERTION: Small 200 mm | Medium 230 mm | Large 270 mm | X-Large 300 mm
MAX CHAINRING SIZE: 34T Standard Single Ring (Based on 52 mm Boost Chainline)
MAX TIRE SIZE: 27.5 x 2.6
REAR SHOCK SAG: 160 mm/60 mm: 16-20 mm (27-33%)
170 mm/65 mm: 18-22 mm (28-34%)

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