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Prices include 20% UK VAT
Prices include 20% UK VAT
OUR inspiration for the J.ACK comes from the cyclists of yesteryear, from the 1920’s, 30’s and 40’s who would have had the freedom to roam the roads and tracks to discover new areas and landscapes that were otherwise unreachable.
The spirit of cycling remains for us very much the same as it was back then, with the freedom to explore uncharted territory being the driving force behind our first frame. We also believe that the road less travelled is more interesting, even if it has more potholes, bumps and stones along the way. Not every ride can be a voyage of discovery but we believe the journey is always more important than the destination (unless that destination is a coffee stop!)
We’ve also taken inspiration from the toughest one day road races such as Strade Bianche, Paris-Roubaix and Tour of Flanders, each a classic that
fortifies the reputations of the hard men and women of professional cycling.
The rough and testing road surfaces epitomise the beginnings of the sport of road racing, and remain the most exciting events to watch and ride.
Our philosophy is to fuse elegant design with modern engineering to provide a highly capable and versatile frame that can tackle pavement, paths or pavé. If you are going to embrace the imperfect, lesser-travelled road to discover new places and scenery, then isn’t it time you added a touch of style, elegance and comfort to iron out the bumps along the way?
That’s why the J.ACK offers the perfect balance of comfort, agility, speed and style, yet ticks those practical boxes too by offering powerful disc braking, clearance for tyres up to 38mm wide and allowing you to opt for mudguard and rack mounts.
Unsightly dynamo cables are no more with our internally routed dynamo cable option.
Reliability and simplicity are king where bottom brackets are concerned and for this reason we recommend threaded bottom bracket shells.
Gear and brake cables are routed internally to protect them from the elements and ensuring smooth shifting and braking.
A wider head tube where the fork meets the frame increases the stiffness in that area, reducing flex and improving steering precision.
Beautifully integrated ‘Streamline‘ head tube and/or bottom bracket that allow all cables to be hidden and protected inside the frame.
Optional custom geometry to ensure a bike that has been made to your measurements to the millimeter.
Run up to 38mm tyres, or 35mm tyres with mudguards.
Add even more versatility by opting for mudguard and rack mounts and open the door to winter riding in comfort or multi-day rides with a pannier for the overnight stay.
- Streamline head tube
- Streamline bottom bracket
- Threaded BSA (English) or T47 bottom bracket, other options available on request.
- Cable routing specific to your groupset
- Internal brake and gear cable routing
- Tapered head tube
- Hope integrated headset
- ÆRA bottom bracket
- ÆRA seatpost clamp
- 38mm tyre clearance
- 35mm tyre clearance with mudguards
- Compliant yet durable 3Al-2.5V double-butted titanium tubing
- 6Al-4V head tube, bottom bracket and dropouts
- 12mm Thru-axle as standard
- Timeless bead blasted graphics
- Elegant frame design
- Choose between standard or UDH drop out
- Rack and/or mudguard mounts
- 3rd bottle cage mount
- Three head badge designs
- Internal dynamo cable routing
- Handlebar width
- Crank arm length
- Chainset ratio
- Stem length
- Cassette ratio
- Seatpost diameter 27.2mm or 31.6mm
- Pavé stainless steel bottle cages bolts
- Bike fit with bespoke geometry from £500
- ÆRA AR Dynamo Disc fork plus £65
- Personalised graphic plus £180
-
Pavé bead blasted frame finish plus £295
-
Bespoke Painting options from £600
- Additional lugs for strapless frame luggage up to £195
- Pavé titanium bottle cage bolts £5 each
- Titanium bottle cages plus £75 each
- Streamline head tube
- Streamline bottom bracket
- Threaded BSA (English) or T47 bottom bracket, other options available on request.
- Cable routing specific to your groupset
- Internal brake and gear cable routing
- Tapered head tube
- Hope integrated headset
- ÆRA bottom bracket
- ÆRA seatpost clamp
- 38mm tyre clearance
- 35mm tyre clearance with mudguards
- Compliant yet durable 3Al-2.5V double-butted titanium tubing
- 6Al-4V head tube, bottom bracket and dropouts
- 12mm Thru-axle as standard
- Timeless bead blasted graphics
- Elegant frame design
- Choose between standard or UDH drop out
- Rack and/or mudguard mounts
- 3rd bottle cage mount
- Three head badge designs
- Internal dynamo cable routing
- Handlebar width
- Crank arm length
- Chainset ratio
- Stem length
- Cassette ratio
- Seatpost diameter 27.2mm or 31.6mm
- Pavé stainless steel bottle cages bolts
- Bike fit with bespoke geometry from £500
- ÆRA AR Dynamo Disc fork plus £65
- Personalised graphic plus £180
-
Pavé bead blasted frame finish plus £295
-
Bespoke Painting options from £600
- Additional lugs for strapless frame luggage up to £195
- Pavé titanium bottle cage bolts £5 each
- Titanium bottle cages plus £75 each
As a guide, we’d suggest:
- 48cm: 152 – 158cm | 4′ 9″ – 5′ 2″
- 50cm: 156 – 164cm | 5′ 1″ – 5′ 4″
- 52cm: 162 – 170cm | 5′ 3″ – 5′ 7″
- 54cm: 168 – 178cm | 5′ 6″ – 5′ 10″
- 56cm: 174 – 184cm | 5′ 8″ – 6′ 0″
- 58cm: 180 – 188cm | 5′ 11″ – 6′ 2″
- 60cm: 186 – 194cm | 6′ 1″ – 6′ 4″
- 62cm: 192 – 200cm | 6′ 3″ – 6′ 6″
If you are unsure about which size is right for you, please don’t hesitate to get in touch.
| S – Stack | 521.2 |
| R – Reach | 358 |
| HT – Head Tube Length | 100 |
| HA – Head Angle | 70.5˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 517.3 |
| TT - Top Tube Actual | 501.4 |
| ST – Seat Tube Length | 480 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 983.6 |
| FC – Front Centre Distance | 573.7 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 80 or 90 |
| Typical handlebar width | 380 or 400 |
| Typical crank length | 165 |
| S – Stack | 532.4 |
| R – Reach | 364 |
| HT – Head Tube Length | 110 |
| HA – Head Angle | 71˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 526.8 |
| TT - Top Tube Actual | 512 |
| ST – Seat Tube Length | 500 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 991.5 |
| FC – Front Centre Distance | 581.6 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 90 |
| Typical handlebar width | 400 |
| Typical crank length | 165 |
| S – Stack | 553.2 |
| R – Reach | 370 |
| HT – Head Tube Length | 130 |
| HA – Head Angle | 71.5˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 539.1 |
| TT - Top Tube Actual | 523.5 |
| ST – Seat Tube Length | 520 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 993.2 |
| FC – Front Centre Distance | 539.1 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 90 or 100 |
| Typical handlebar width | 400 |
| Typical crank length | 170 |
| S – Stack | 572.2 |
| R – Reach | 376 |
| HT – Head Tube Length | 150 |
| HA – Head Angle | 71.5˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 550.9 |
| TT - Top Tube Actual | 535.2 |
| ST – Seat Tube Length | 540 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 1005.6 |
| FC – Front Centre Distance | 595.6 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 100 |
| Typical handlebar width | 400 or 420 |
| Typical crank length | 172.5 |
| S – Stack | 583.5 |
| R – Reach | 382.1 |
| HT – Head Tube Length | 160 |
| HA – Head Angle | 71.5˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 560.0 |
| TT - Top Tube Actual | 546 |
| ST – Seat Tube Length | 560 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 1015.6 |
| FC – Front Centre Distance | 605.4 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 100 |
| Typical handlebar width | 420 |
| Typical crank length | 172.5 |
| S – Stack | 597.8 |
| R – Reach | 388 |
| HT – Head Tube Length | 175 |
| HA – Head Angle | 72˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 570.8 |
| TT - Top Tube Actual | 557 |
| ST – Seat Tube Length | 580 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 1020.9 |
| FC – Front Centre Distance | 610.8 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 110 |
| Typical handlebar width | 420 or 440 |
| Typical crank length | 175 |
| S – Stack | 612.1 |
| R – Reach | 394.3 |
| HT – Head Tube Length | 190 |
| HA – Head Angle | 72˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 581.5 |
| TT - Top Tube Actual | 569.2 |
| ST – Seat Tube Length | 600 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 1031.9 |
| FC – Front Centre Distance | 621.7 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 110 or 120 |
| Typical handlebar width | 440 |
| Typical crank length | 175 |
| S – Stack | 623.5 |
| R – Reach | 400 |
| HT – Head Tube Length | 200 |
| HA – Head Angle | 72.5˚ |
| AC – Fork Axle to Crown | 395 |
| FO – Fork Offset | 45 |
| TTE - Top Tube Effective | 590.6 |
| TT - Top Tube Actual | 579.6 |
| ST – Seat Tube Length | 620 |
| SA – Seat Tube Angle | 73˚ |
| CS – Chain Stay Length | 423 |
| WB – Wheelbase | 1035.8 |
| FC – Front Centre Distance | 625.6 |
| BBD – Bottom Bracket Drop | 70 |
| Rear axle spacing | 142 |
| Typical stem length | 120 |
| Typical handlebar width | 440 |
| Typical crank length | 177.5 |
All measurements in millimetres unless otherwise specified
