Endeavour - Frame
Endeavour - Frame
Endeavour - Frame
Endeavour - Frame
Endeavour - Frame
Endeavour - Frame
Endeavour - Frame
Endeavour - Frame
Modern, Versatile and Striking Steel Adventure Bike

The Endeavour is the steel sister to our hugely successful Titanium Escape, designed for bike packing, touring, and exploring the world beyond tarmac. The Endeavour is equally at home as a classy commuter, winter training road bike, or as a nimble and very capable gravel bike on your local trails.

  • Frame Material Columbus & Reynolds Blend
  • Frame Finish Included Fade Scheme
  • Axles 12mm x 100mm Front, 12 x 142mm Bolt Thru
  • Bottom Bracket (Disc) BSA 68mm
  • Brake Mount (Disc) Flat Mount, 140 or 160mm Rotor
  • Seat Tube Internal 31.6mm or 27.2 with a shim
  • Seat Tube External 34.9mm
  • Headset Integrated ZS44 Upper / EC44 Lower (Chris King Inset 7/8)
  • Tyre Clearance 700c x 40mm with Mudguards, 700c x 43mm Without
  • Tyre Clearance 650b x 47mm
  • Front Derailleur 34.9mm Band

We view all our riders as individuals and as such all our stock geometries are unisex in design – offering 11 finely tuned stock sizes from 50cm to 60cm, with the additional option of a full custom design and build (+£300).

Because every Endeavour frame is made to order here in our Sussex workshop, we have complete control from start to finish. This allows us to control every step of production, and allows you to fine tune your Endeavour your way. From custom geometry through to bespoke finishes and more. So if a stock geometry frame doesn’t work for you, we’ll make you one that does, and with careful consideration on components we can further customise every build to ensure the fit is perfect.

We feel that having a frame that fits you perfectly is a critical part of the process. We have over 20 years of bike fitting experience and data to call upon to ensure your riding position is absolute pinpoint. You can make an appointment here for a fitting. No obligation.

Alternatively you can send us any fit data you have or if you have a bike that fits you perfectly, let us know and we can go from there.

Further information on our sizing and frame geometry can be found here.

Opting for an individually crafted frame presents the benefit of total customisation, tailored specifically to match your distinctive style and riding preferences. This flexibility enables the meticulous adjustment of each frame to cater to riders' specific needs, encompassing personalised frame geometry, customised cable routing, the addition of extra eyelets, and the option for unique frame finishes, including bespoke paint designs. Virtually anything is within the realm of possibility.

When considering complete bike purchases, the range of achievable specifications is extensive. If you have a specific vision for your upcoming bike build, just let us know, and we can turn your ideas into reality.

Get in touch:

Call, email, or book a visit online by clicking here .


During our conversation we will better understand:
-Your riding style
-Your objectives and targets
-Frame sizing based on fitting data

Precise Understanding:

Once all the information has been collected we will draw up a cad image with your measurements and position for sign off. We will also send over detailed order confirmation which will list out all the parts for your bike build.

Sign off:

Once the order and frame design has been signed off and given the green light we will request a £1000 deposit to reserve a build slot.

Enigma Partner:

Alternatively, get in touch with your local Enigma dealer who will carefully guide you through the process.

Once the design and specification are complete and signed off we will request your deposit. Once paid you be given a production slot and we will then start to collate/order any additional tubing or components for your order.

Please note, if you’re intending to pay the full amount through a cycle scheme then your deposit will be refunded once we’ve processed your voucher, normally upon handover of your bike or frameset.

The next part is the hard part…..the wait! We aim to have your frame assembled between 60-90 days depending on how customised the geometry is. If you are having a full bike build During this time any parts for a build will have been collated and ordered so once the frame has been signed off, the mechanics can start assembly. Please allow extra time for any paintwork

Upon completion of the construction of your Enigma and its readiness for handover, we will prompt you for settling the outstanding balance. We gladly accept all major debit/credit cards and collaborate with prominent Ride to Work schemes, as depicted below. It's important to note that, due to elevated commission rates associated with specific schemes, a surcharge may be applicable. Additionally, we extend the option of financing through V12. To streamline the process, we kindly request information about your preferred payment method, be it through a scheme or utilizing our financing option, at the time of placing your order.

Frame Buying Options

Handmade frames built to perfection by the Enigma team here in our Sussex workshop. Every Signature frame is meticulously crafted to exacting standards using the finest hand selected materials and is designed to deliver exceptional performance combined with an aesthetic that is classic, beautiful and ‘British’.

Our Signature Endeavour frame includes a ‘Fade’ finish as standard but other paint options are available at an additional cost. Please see our paintworks page for more information.

    Frame Only Price:
  • From £1599
  • Custom Geometry Upcharge + £300
    Frameset From Price:
  • From £2077

The frameset price includes our own C-Six ADV or GRV Carbon Adventure/Gravel Fork (Painted), TK036A Inset headset, alloy seat collar, thru-axles front and rear and any appropriate guides.

Get the look – Add a matching Hope Headset, Seat Collar and Bottom Bracket to your order for an extra £136


Steel bikes have been present in the Enigma range for over 12 years, and although we are more widely known for our titanium frames, the roots of frame building lie in the tradition and skills honed over generations of steel frame builders. In a world of carbon and aluminium bikes there is something ‘Enigmatic’ about a modern steel bike, that provides a beautiful ride quality and modern performance blended with classic, timeless styling.

The Endeavour is handcrafted from a carefully considered blend of Columbus and Reynolds tubing with geometry optimised for stability over challenging terrain. Generous tyre clearance for 700c x 43mm or 650b x 47mm tyres ensures a wide range of wheel/tyre options for real versatility. There are mounts for mudguards, a pannier rack, and fork mounted cargo cages along with a versatile cable routing system to keep things tidy whether you’re using 1x, 2x, mechanical, Di2 or Wireless groupsets. Aimed at off road and endurance riding, the Endeavour frame features a higher stack height than some of our other models to enhance comfort levels over long distances.

The Endeavour is a striking, versatile, modern gravel bike for lovers of steel machines and sports a beautiful ‘Fade’ colour scheme for a stylish, contemporary look.

A feast for the eyes. Enigma dealer LightWolf Studio from Dresden, captured this stunning Steel Endeavour build assembled by their mechanic Nills.


The sizing chart will help get you on the right size bike, please also refer to the geometry table for full specification. Learn more about Enigma Bike Sizing

Enigma Endeavour Disc

Frame Size A - Top Tube (mm) B - Seat Tube C - Head Tube D - Chain Stay E - BB Drop F - Seat Angle G - Head Angle H - Fork Length I - Stack J - Reach K - Wheel Base Down Tube OD Top Tube OD
52 520 470 120 435 75 75.0 70.5 399 558 368 1021 38 32
54 540 500 140 435 75 74.0 71.0 399 579 372 1027 38 32
56 560 530 160 435 75 73.0 71.0 399 598 376 1037 38 32
58 580 560 180 435 75 73.0 71.5 399 619 390 1053 38 32


Frame Size (Horizontal Top Tube)   Rider Height (cm) Rider Height (Inches) Saddle Height (mm)
50 158 5'2" 660
51 162 5'4" 680
52 166 5'5" 700
53 170 5'7" 720
54 174 5'8" 740
55 178 5'10" 760
56 182 6'0" 780
57 186 6'1" 800
58 190 6'3" 820
59 194 6'4" 840
60 198 6'6" 860

Our team of expert fitters are always on hand to help you choose, so if in any doubt please get in touch.