Vires Velo Studio - Buckinghamshire

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Factor Ostro Gravel White Grunge

Factor’s OSTRO Gravel takes all the lightweight, superior handling and aero performance that we love about the OSTRO VAM and combines that with a 45mm wide tire capability and stable geometry, which results in a gravel bike that’s equally fast across all types of terrains. Available as a complete build or frameset package.

£7,499.00£9,699.00

Customise this bike using our online bike building tool.
BUILD MY BIKE

Available to order

To start your journey and order your new bike with Vires Velo, follow the steps below or just contact our team now to get started.

  1. Build your bike spec using our online bike builder here
  2. Secure your build by placing a 30% deposit (fully refundable)
  3. Our build team will contact you to confirm your options
  4. Your final balance will be due 1-2 weeks prior to your bike being built by the workshop
  5. Your new bike will be delivered or can be collected

If you require a bike fit with us, this can be booked here. Once your bike fit is complete we will use your data to determine your spec and final set-up.

Speed is your goal. Every ride, whatever the surface, faster is what counts, and this is the gravel bike you’ve been waiting for. The OSTRO Gravel takes its ‘win everywhere’ mentality from its road racer stablemate, the OSTRO VAM, and is likewise developed to dominate its category with incredible aero, superior handling, high stiffness and low weight. With a tyre capacity of 45mm, it’s ready to go anywhere, fast.

  • 45mm tyre clearance
  • New accompanying Black Inc gravel wheelset
  • New Black Inc Aero bar
  • Fast handling with 43mm tires and an equally satisfying and precise all-road machine on 32mm
  • Frame is carefully optimised for the speeds at which you’ll be riding off-road
  • 900g claimed frame weight (54 Grunge)
  • T47BB
  • Mounting bosses to the top tube and down tube

FRAME
TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber
FORK
OSTRO Wide Stance Fork
SEATPOST
0 and 20mm setback available
BARSTEM
Black Inc Aero Integrated Barstem Reach 80mm, drop 120mm. Multiple stem lengths and bar widths available
HEADSET
CeramicSpeed SLT 1.5" bearings
HEAD TUBE DIAMETER
1.5" upper and lower
BOTTOM BRACKET
CeramicSpeed T47A Aluminium cups / CeramicSpeed bearings with Wheels MFG 24mm BBRight Reducers / Adapters
MAX TIRE CLEARANCE
45mm
WHEEL SIZE
700c
BRAKE TYPE
Disc
FRONT AXLE
12 x 100mm thru-axle
REAR AXLE
12 x 142mm thru-axle
CABLE ROUTING
Internal
FINISH/COLOUR
Grunge, White Grunge
MANUFACTURER WARRANTY
Limited Lifetime Warranty

Complete bikes will be shipped using our Secure Personalised Delivery Service (Some location restrictions apply) where the bike will be delivered to your door, completely built and ready to ride.

If this service is not available in your area, it will be shipped securely by next-day delivery in a large box, with very little reassembly needed.

Our complete bike shipping fee is £200.

To reserve this bike or ask any questions, contact our expert team now:

Bike Enquiry Form

Your personal data will be used to handle your enquiry. View our Privacy Policy here.

Newsletter

To start your journey and order your new bike with Vires Velo, follow the steps below or just contact our team now to get started.

  1. Build your bike spec using our online bike builder here
  2. Secure your build by placing a 30% deposit (fully refundable)
  3. Our build team will contact you to confirm your options
  4. Your final balance will be due 1-2 weeks prior to your bike being built by the workshop
  5. Your new bike will be delivered or can be collected

If you require a bike fit with us, this can be booked here. Once your bike fit is complete we will use your data to determine your spec and final set-up.

Speed is your goal. Every ride, whatever the surface, faster is what counts, and this is the gravel bike you’ve been waiting for. The OSTRO Gravel takes its ‘win everywhere’ mentality from its road racer stablemate, the OSTRO VAM, and is likewise developed to dominate its category with incredible aero, superior handling, high stiffness and low weight. With a tyre capacity of 45mm, it’s ready to go anywhere, fast.

  • 45mm tyre clearance
  • New accompanying Black Inc gravel wheelset
  • New Black Inc Aero bar
  • Fast handling with 43mm tires and an equally satisfying and precise all-road machine on 32mm
  • Frame is carefully optimised for the speeds at which you’ll be riding off-road
  • 900g claimed frame weight (54 Grunge)
  • T47BB
  • Mounting bosses to the top tube and down tube
FRAME
TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber
FORK
OSTRO Wide Stance Fork
SEATPOST
0 and 20mm setback available
BARSTEM
Black Inc Aero Integrated Barstem Reach 80mm, drop 120mm. Multiple stem lengths and bar widths available
HEADSET
CeramicSpeed SLT 1.5" bearings
HEAD TUBE DIAMETER
1.5" upper and lower
BOTTOM BRACKET
CeramicSpeed T47A Aluminium cups / CeramicSpeed bearings with Wheels MFG 24mm BBRight Reducers / Adapters
MAX TIRE CLEARANCE
45mm
WHEEL SIZE
700c
BRAKE TYPE
Disc
FRONT AXLE
12 x 100mm thru-axle
REAR AXLE
12 x 142mm thru-axle
CABLE ROUTING
Internal
FINISH/COLOUR
Grunge, White Grunge
MANUFACTURER WARRANTY
Limited Lifetime Warranty

Complete bikes will be shipped using our Secure Personalised Delivery Service (Some location restrictions apply) where the bike will be delivered to your door, completely built and ready to ride.

If this service is not available in your area, it will be shipped securely by next-day delivery in a large box, with very little reassembly needed.

Our complete bike shipping fee is £200.

To reserve this bike or ask any questions, contact our expert team now:

Bike Enquiry Form

Your personal data will be used to handle your enquiry. View our Privacy Policy here.

Newsletter

Delivered to you

Available for delivery directly to you in a secure bike box with little reassembly required

Custom built for you

Work with us to build your ideal spec and set up

Limited Lifetime Warranty

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

Geometry

AStack
515

BReach
377

CFront Center
591

DWheelbase
999

EBB drop
76

FST angle
74.5

GHT angle
71.2°

HTT (effective)
520

IST
450

JFork length
400

KFork Offset
56

LTrail
62

AStack
535

BReach
385

CFront Center
604

DWheelbase
1013

EBB drop
76

FST angle
74°

GHT angle
71.3°

HTT (effective)
538

IST
468

JFork length
400

KFork Offset
56

LTrail
62

AStack
555

BReach
394

CFront Center
605

DWheelbase
1014

EBB drop
74

FST angle
74°

GHT angle
72.2°

HTT (effective)
553

IST
483

JFork length
400

KFork Offset
50

LTrail
61

AStack
580

BReach
402

CFront Center
620

DWheelbase
1029

EBB drop
74

FST angle
73.5°

GHT angle
72.3°

HTT (effective)
574

IST
500

JFork length
400

KFork Offset
50

LTrail
61

AStack
605

BReach
412

CFront Center
638

DWheelbase
1047

EBB drop
74

FST angle
73.5°

GHT angle
72.3°

HTT (effective)
591

IST
523

JFork length
400

KFork Offset
50

LTrail
61

AStack
625

BReach
422

CFront Center
655

DWheelbase
1069

EBB drop
74

FST angle
73.5°

GHT angle
72.3°

HTT (effective)
607

IST
545

JFork length
400

KFork Offset
50

LTrail
61

SIZE:
49
52
54
56
58
61
AStack
515
535
555
580
605
625
BReach
377
385
394
402
412
422
CFront Center
591
604
605
620
638
655
DWheelbase
999
1013
1014
1029
1047
1069
EBB drop
76
76
74
74
74
74
FST angle
74.5
74°
74°
73.5°
73.5°
73.5°
GHT angle
71.2°
71.3°
72.2°
72.3°
72.3°
72.3°
HTT (effective)
520
538
553
574
591
607
IST
450
468
483
500
523
545
JFork length
400
400
400
400
400
400
KFork Offset
56
56
50
50
50
50
LTrail
62
62
61
61
61
61
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