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.
Shimano 105 R7020 hydraulic disc
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Flat mount braking
Pro LT finishing kit
Shimano Ultegra R8020 or
Shimano Ultegra Di2 R8070
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Flat mount braking
Pro LT finishing kit
Shimano Dura-Ace R9120 or
Shimano Dura-Ace Di2 R9170
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Flat mount braking
ENVE finishing kit
Personalised bead blasted message
Choose from Shimano 105, Ultegra or Dura Ace
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Choice of finishing kit
Custom paint finish

Shimano 105 R7020 hydraulic disc
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Flat mount braking
Pro LT finishing kit

Shimano Ultegra R8020 or
Shimano Ultegra Di2 R8070
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Flat mount braking
Pro LT finishing kit

Shimano Dura-Ace R9120 or
Shimano Dura-Ace Di2 R9170
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Flat mount braking
ENVE finishing kit
Personalised bead blasted message

Choose from Shimano 105, Ultegra or Dura Ace
Your choice of ÆRA wheels
Brooks Cambium C13 saddle
Hope threaded or T47 bottom bracket & integrated headset
Choice of finishing kit
Custom paint finish
Beautifully integrated ‘Streamline‘ head tube and/or bottom bracket that allow all cables to be hidden and protected inside the frame.
- 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
- 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
- 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 plus £130
- Custom geometry up to £350
- ÆRA AR Dynamo Disc fork plus £65
- Streamline head tube plus £175
- Streamline bottom bracket plus £150
- Personalised graphic plus £90
-
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 £40 each
- 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
- 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
- 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 plus £130
- Custom geometry up to £350
- ÆRA AR Dynamo Disc fork plus £65
- Streamline head tube plus £175
- Streamline bottom bracket plus £150
- Personalised graphic plus £90
-
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 £40 each