Transition

Spire Alloy GX Bike

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  • Special Offer
  • Regular price £4,699.95
VAT included.


All new for 2021! A 170 mm 29er with the latest version of Transitions "Giddy Up" suspension platform, with improved small bump sensitivity and mid-stroke support.

The new Spire's frame has a flip chip at the lower shock mount, though from what we've been told by Transition the higher setting sounds like the better setting for typical UK trails.

There's more adjustment at the head tube, with a ZS56/ZS56 press fit headset, which you can replace with an angleset to change reach or head tube angle.

Chainstay length increases on the XL and XXL size frames, from 446 mm on the S, M and L bikes to 452 on the XL and XXL bikes, and there's clearance for a 2.6 tyre.

This Alloy GX spec bike has a Zeb Ultimate fork and Super Deluxe Ultimate shock. All models have four piston brakes and 165 mm cranks.

Our first deliveries will start arriving in June, and we'll have more bikes delivered in 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.)

Read more about the new Transition Spire here.

  • High and low geometry options via lower shock mount flip chip.
  • Two chainstay lengths, short on S, M & L and long on XL & XXL.
  • New oversized parallel headtube enabling the use of reach or angle adjustment headsets.
  • Frame protection on chainstay, seat stay and downtube "shuttle guard".
  • EnduroMAX frame bearings.

Cycle to Work

UK customers - you can use the Government’s “Cycle to Work” scheme to buy this bike from 20Twenty, and you could save 25-39%. You can buy a bike, bike and accessories, or just accessories through the Cycle to Work scheme. We can even provide you with a custom-built bike through the scheme.

We use Cyclescheme to administer Cycle to Work bike sales. Your employer needs to be registered with Cyclescheme. If they are not, they can sign up here.

There is no £1000 limit any more, though your employer might have a limit. You can use the Cyclescheme calculator to work out what you might save here.

For more information, click here to contact us or call 01330 828562

Sizing & Geo

Spire Geo (High Setting)

Small

Medium

Large

X-Large

XX-Large

Reach

430

460

485

510

535

Stack

619

619

628

637

646

Effective TT Length

547

577

605

633

661

Seat Tube Length

360

390

430

460

490

Effective ST Angle

79.6

78.8

78.1

77.5

77.2

Saddle Height For Effective ST Angle

600

660

720

780

820

Actual ST Angle

70.5

70.5

70.5

70.5

70.5

Seat Tube Offset At BB

100

100

100

100

100

Headtube Length

100

100

110

120

130

Head Tube Angle

63.0

63.0

63.0

63.0

63.0

Chainstay Length

446

446

446

452

452

Wheelbase

1227

1257

1287

1322

1352

Bottom Bracket Drop

25

25

25

25

25

Estimated BB Height

350

350

350

350

350

Stand Over Height

685

700

715

730

745

Fork Offset

44

44

44

44

44


Spire Geo (Low Setting) Approx.

Small

Medium

Large

X-Large

XX-Large

Reach

425

455

480

505

530

Stack

624

624

633

642

651

Effective TT Length

550

580

608

636

664

Seat Tube Length

360

390

430

460

490

Effective ST Angle

79.1

78.3

77.6

77.0

76.7

Saddle Height For Effective ST Angle

600

660

720

780

820

Actual ST Angle

70.0

70.0

70.0

70.0

70.0

Seat Tube Offset At BB

100

100

100

100

100

Headtube Length

100

100

110

120

130

Head Tube Angle

62.5

62.5

62.5

62.5

62.5

Chainstay Length

448

448

448

454

454

Wheelbase

1229

1259

1289

1324

1354

Bottom Bracket Drop

32

32

32

32

32

Estimated BB Height

343

343

343

343

343

Stand Over Height

685

700

715

730

745

Fork Offset

44

44

44

44

44

 

Spec

Model

Spire Alloy GX

UK Price

£4,699.95



Rear Shock

ROCKSHOX Super Deluxe Ultimate Air (170 mm Travel/205x65 mm)

Fork

RockShox ZEB Ultimate 29 170 mm Travel/44 mm Offset

Headset

FSA NO.55R/57

Stem

ANVL Swage (40 mm)

Bar

ANVL Mandrel Alloy

Grips

Sensus Lite

Saddle

ANVL Forge Cromo or WTB Silverado

Seatpost

OneUp Dropper Post

Brakes

SRAM Code RSC

Rotors

SRAM Centerline (200 mm)

Shifter

SRAM GX Eagle

Derailleur

SRAM GX Eagle

Cassette

SRAM XG 1275 (10-52t)

Chain

SRAM GX Eagle

Crank

SRAM GX Alloy DUB (30t/165 mm)

Chainguide

OneUp Bash Guide

Wheelset/Rims

Stans Flow S1

Spokes

Sapim Race Double Butted

Hubs

Stans Neo Durasync

Front Tire

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

Rear Tire

Schwalbe Big Betty, Super Trail, Soft (29x2.4)

Other

Tubeless Valves & Stans Sealant (6oz)



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