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ABOUT VIRES VELO

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YOUR EXPERIENCE

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When you order your bike through Vires Velo, our mission is to deliver you a first-class journey. Find your perfect position, design your ideal specification, measure your fitness and leave ready to take your cycling to new levels.

Factor Bikes is a manufacturer of ultra-performance carbon fibre bicycles. Available exclusively in the UK through Vires Velo. Shop online and configure your dream bike with us now.

FACTOR BIKES

OSTRO VAM

SHOP OSTRO
Ostro_Chrome

When the most important aspect of performance is everything – aero, lightness, comfort, handling – the OSTRO is the answer.

Black Inc is a performance driven company making top-end wheels and components. The passion for engineering that powers the team means that only the best materials are used and no compromises are accepted. Available exclusively in the UK through Vires Velo.

BLACK INC

Your wheels are, and always have been, one of the most effective upgrades you can make to your bike, whether you’re chasing lighter weight or increased aerodynamics. Shop online now:

Factor LS Frameset

Factor's LS is a gravel racing frameset – no corners cut, no compromises made, no-holds-barred. If you want to carry a tent and a stove, look elsewhere; if you want to rip up the forest roads, step this way.

£2,650.00£3,650.00

Quantity

The frame delivers agile handling and sharp power transfer expected by road racers switching to gravel, coupled with clearance for 43mm tyres.

Available to order in a standard frame, fork and headset configuration which offers exceptional value for money.

If you would like to take your build to the next level you can upgrade to the premium frameset package which includes the beautifully integrated barstem from Black Inc, lightweight carbon seat post in with zero offset or 25mm and CeramicSpeed’s silky smooth bearings in the bottom bracket and headset. Factor design their products to work in harmony for optimum performance and aesthetics. With the frameset package, you can retain the intended design of the LS and customise the build however you desire with groupset and wheels.

  • Top tube bento mount: Securely mount a feed bag where it’s most aero and easiest to reach
  • Frame bag compatible: Carry what you need to go self-supported all day and even longer
  • Third water bottle mount: Sustain your epic rides with the option to carry a third bottle under the downtube
  • Chainsuck protector: Saves the frame from damage in the unlucky event of the chain getting sucked around the chainrings
  • Kinked pencil seat stays: Absorb vibration and shocks to save you energy
  • Compatibility: the LS is compatible with both mechanical and electronic shifting groupsets and with 1x and 2x drivetrains, so the choice is yours

Frame, Fork & Headset

  • Factor O2 Frame
  • Factor O2 Svelte Fork
  • Headset bearings
  • Small ‘Pizza Box’ with parts for frame/fork assembly including cable guides and spacers

Premium Frameset Upgrade Package

  • Factor O2 Frame & Svelte Fork
  • Black Inc Seatpost (Choice of zero or 25mm setback)
  • Black Inc Integrated Barstem (Your choice of size)
  • CeramicSpeed BB & Headset
  • ‘Pizza Box’ with a range of accessories, including: Bartape, compression plug, chainstay protector, garmin computer mount, rear derailleur hanger, seatpost wedge and saddle clamps.
  • You will also get a set of grommets, spacers, cable stops  and covers to complete your build.

Please leave your barstem and seatpost choice in the notes section on checkout.

FRAME
Factor Toray® & Nippon Graphite® Pan-Based Fibre
FORK
Factor LS carbon
SEATPOST
27.2 Round, post not included in standard frameset package
HEADSET
1-1/8" upper, 1-3/8" lower, 45x36
SEAT RAIL CLAMPS
7x7 and 7x9
FRONT AXLE
12x100 Threaded
REAR AXLE
12x142 Threaded
BRAKE TYPE
Disc
BOTTOM BRACKET
CeramicSpeed T47A Aluminum cups / CeramicSpeed bearings with Wheels MFG 24mm BBRight Reducers / Adapters
COMPATIBLE COMPONENTS
1x or 2x, Electronic or Mechanical
FINISH/COLOR
Crystal Green, Naked Carbon, Vintage Blue
MANUFACTURER WARRANTY
Limited Lifetime Warranty
WHEEL SIZE
700c
MAX TIRE CLEARANCE
43mm

We are pleased to offer FREE DELIVERY on all framesets ordered online through the Vires Velo website.

UK Delivery only.

For the latest availability on the frameset you wish to order, please contact our team here.

Certain sizes and colours are available for immediate shipping.

The frame delivers agile handling and sharp power transfer expected by road racers switching to gravel, coupled with clearance for 43mm tyres.

Available to order in a standard frame, fork and headset configuration which offers exceptional value for money.

If you would like to take your build to the next level you can upgrade to the premium frameset package which includes the beautifully integrated barstem from Black Inc, lightweight carbon seat post in with zero offset or 25mm and CeramicSpeed’s silky smooth bearings in the bottom bracket and headset. Factor design their products to work in harmony for optimum performance and aesthetics. With the frameset package, you can retain the intended design of the LS and customise the build however you desire with groupset and wheels.

  • Top tube bento mount: Securely mount a feed bag where it’s most aero and easiest to reach
  • Frame bag compatible: Carry what you need to go self-supported all day and even longer
  • Third water bottle mount: Sustain your epic rides with the option to carry a third bottle under the downtube
  • Chainsuck protector: Saves the frame from damage in the unlucky event of the chain getting sucked around the chainrings
  • Kinked pencil seat stays: Absorb vibration and shocks to save you energy
  • Compatibility: the LS is compatible with both mechanical and electronic shifting groupsets and with 1x and 2x drivetrains, so the choice is yours

Frame, Fork & Headset

  • Factor O2 Frame
  • Factor O2 Svelte Fork
  • Headset bearings
  • Small ‘Pizza Box’ with parts for frame/fork assembly including cable guides and spacers

Premium Frameset Upgrade Package

  • Factor O2 Frame & Svelte Fork
  • Black Inc Seatpost (Choice of zero or 25mm setback)
  • Black Inc Integrated Barstem (Your choice of size)
  • CeramicSpeed BB & Headset
  • ‘Pizza Box’ with a range of accessories, including: Bartape, compression plug, chainstay protector, garmin computer mount, rear derailleur hanger, seatpost wedge and saddle clamps.
  • You will also get a set of grommets, spacers, cable stops  and covers to complete your build.

Please leave your barstem and seatpost choice in the notes section on checkout.

FRAME
Factor Toray® & Nippon Graphite® Pan-Based Fibre
FORK
Factor LS carbon
SEATPOST
27.2 Round, post not included in standard frameset package
HEADSET
1-1/8" upper, 1-3/8" lower, 45x36
SEAT RAIL CLAMPS
7x7 and 7x9
FRONT AXLE
12x100 Threaded
REAR AXLE
12x142 Threaded
BRAKE TYPE
Disc
BOTTOM BRACKET
CeramicSpeed T47A Aluminum cups / CeramicSpeed bearings with Wheels MFG 24mm BBRight Reducers / Adapters
COMPATIBLE COMPONENTS
1x or 2x, Electronic or Mechanical
FINISH/COLOR
Crystal Green, Naked Carbon, Vintage Blue
MANUFACTURER WARRANTY
Limited Lifetime Warranty
WHEEL SIZE
700c
MAX TIRE CLEARANCE
43mm

We are pleased to offer FREE DELIVERY on all framesets ordered online through the Vires Velo website.

UK Delivery only.

For the latest availability on the frameset you wish to order, please contact our team here.

Certain sizes and colours are available for immediate shipping.

Free Delivery

Order a frameset online through Vires Velo and we'll deliver it free of charge

Frameset Upgrade Programme

If you are looking to switch out your frame and keep your existing groupset, our workshop can move all your components over (charge applies)

Limited Lifetime Warranty

Factor offer a limited lifetime warranty on all frames and forks to the original owner

Geometry

AStack
530

BReach
372

CSeat Tube Angle
74.5°

DTop Tube
519

EHead Tube Angle
71.5°

FFork Offset
50

GFork Trail
60-61

HSeat Tube Length
455

IBB Drop
76

JFront Center
582

KFork Length
395

LChainstay Length
420

MWheelbase
990

NStand Over Height
748

AStack
547

BReach
378

CSeat Tube Angle
74°

DTop Tube
535

EHead Tube Angle
71.9 °

FFork Offset
50

GFork Trail
60-61

HSeat Tube Length
481

IBB Drop
76

JFront Center
589

KFork Length
395

LChainstay Length
420

MWheelbase
998

NStand Over Height
772

AStack
566

BReach
383

CSeat Tube Angle
73.5°

DTop Tube
550

EHead Tube Angle
72.3°

FFork Offset
50

GFork Trail
59-60

HSeat Tube Length
507

IBB Drop
76

JFront Center
597

KFork Length
395

LChainstay Length
420

MWheelbase
1005

NStand Over Height
789

AStack
585

BReach
392

CSeat Tube Angle
73.5°

DTop Tube
566

EHead Tube Angle
72.3°

FFork Offset
50

GFork Trail
59-60

HSeat Tube Length
527

IBB Drop
76

JFront Center
612

KFork Length
395

LChainstay Length
420

MWheelbase
1020

NStand Over Height
809

AStack
605

BReach
401

CSeat Tube Angle
73.5°

DTop Tube
580

EHead Tube Angle
72.3°

FFork Offset
50

GFork Trail
59-60

HSeat Tube Length
552

IBB Drop
76

JFront Center
627

KFork Length
395

LChainstay Length
420

MWheelbase
1035

NStand Over Height
831

SIZE
49
52
54
56
58
AStack
530
547
566
585
605
BReach
372
378
383
392
401
CSeat Tube Angle
74.5°
74°
73.5°
73.5°
73.5°
DTop Tube
519
535
550
566
580
EHead Tube Angle
71.5°
71.9 °
72.3°
72.3°
72.3°
FFork Offset
50
50
50
50
50
GFork Trail
60-61
60-61
59-60
59-60
59-60
HSeat Tube Length
455
481
507
527
552
IBB Drop
76
76
76
76
76
JFront Center
582
589
597
612
627
KFork Length
395
395
395
395
395
LChainstay Length
420
420
420
420
420
MWheelbase
990
998
1005
1020
1035
NStand Over Height
748
772
789
809
831