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Genesis Day One Decade Singlespeed Bike 2016

Product Code: 145606

10th Anniversary build of our legendary Day One! Returning to its' muddy, knobbly-tyred off-road roots.

Bikes like have always existed, it's just they never had their own category as they do now (SSCX), so kudos to original designer, James Olsen for thinking outside the box back in 2006. For 2016 we've revisited the Day One's CX-inspired beginnings, putting together a bike more suited to off-road.

The 38x17T gearing provides the perfect singlespeed off-road gearing when paired with the high-volume Clement X'Plor MSO 40c tyres (61.5GI) and outback you'll find a hardy dedicated singlespeed cassette freehub (no clunky screw-on freewheels here).

Whether you're mixing it up between tarmac and trail on the way to work, opening up new routes and exploring trail link-ups in winter, or simply enjoying the challenge of riding distilled to its purest form, the Day One is a constant in cycling and a boatload of fun to boot!


One speed to rule them all!

38/17T gearing (61.5GI) which should be the perfect offroad ratio for the majority of people - ensuring you'll not spin-out too easily on hardpack in summer and can keep spinning through the thick mud in winter.

TRP Spyre

TRP Spyre-C mechanical disc brakes utilize and clever and unique dual-piston action meaning we forgo the usual static slave pad/piston usually found with other mechanical disc brake. Improved pad/rotor clearance and therefore no rubbing and infinitely easier setup and less continual tweaking are the upshots. We've also combined them with Jagwire KEB-SL compressionless outer for optimum performance. The devil's in the detail!

Mjölnir chromoly

AKA ‘Thor’s Hammer’ and pronounced ‘Myol-n(ee)r‘ (rolls off the tongue, eh?). Our double-butted, cold-drawn, seamless, Taiwanese chromoly tubeset also goes by the aliases of 4130, Cr-Mo and Chromo. It’s a like-for-like replacement for other, identical branded chromoly tubing and ultimately means a saving can be passed onto you via either a healthy price drop or a little more room for up-speccing elsewhere without sacrificing performance.

RandoX handlebar

Our new handlebar is the bastard love child between a modern compact drop bar and a traditional randonneur handlebar of old. The acclaimed flared drops (8deg) and backswept tops (6deg) of a traditional rando bar but without the old-school backbreaking drop and reach to give a wider, more natural drop bar position for and increased comfort and control.

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£695.00 GBP
4 Weeks Free Insurance

We have partnered with Cycleplan to give you 4 Weeks Insurance if you Purchase a bike up to the value of £2000.

Purchase the bike and we will email you a link to activate your 4 week Free Cycle Insurance.

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Product Specifications

Frame and Fork

Frame: Genesis Mjölnir Seamless Double-Butted Cromoly

Fork: Cr-Mo Unicrown Disc

Headset: FSA Orbit DL/No.1

Colour: Pearl White

Weight: 10.67kg (Med w/o pedals)

Sizes: XS/S/M/L/XL


Shifters: N/A

Rear Derailleur: N/A

Front Derailleur: N/A

Chainset: Samox 38T Single

Bottom Bracket: TH BB-7420ST, 68x110.5mm

Chain: KMC X1 (1/2" x 3/32")

Freewheel: Steel Sprocket, 3/32" x 17T

Wheels and Braking

Hubs: Joytech 6-Bolt Disc Nutted

Rims: Alex Rims Draw 1.9P TCS, 32H

Spokes: 14G Stainless Silver DB w/ Brass Nipples

Tyres: Clement X'Plor MSO, 700x40c

Brakes: TRP Spyre-C w/ 160mm Rotors & Jagwire KEB-SL Compresionless Outer

Brake Levers: Promax BL-253

Contact Zones

Handlebars: Genesis RandoX Flared (D125/R70mm)

Stem: Genesis Road (+/-7

Grips: Genesis Cork Gel

Saddle: Genesis Road Comfort

Seatpost: Genesis

Seat Clamp

Pedals: N/A


Day One Decade Geometry

1 - Horizontal Toptube Length (mm) 524 544 561 582 605
2 - Seat Angle (°) 74 73.5 73.5 73 72.5
3 - Headtube Length (mm) 115 135 155 175 195
4 - Head Angle (°) 71 71 71.5 71.5 72
5 - Seat Tube Length (C-T, mm) 470 500 530 550 580
6 - BB Drop (mm) 73 73 73 73 73
7 - Chanstay Length (mm) 430 430 430 430 430
8 - Fork Offset (mm) 50 50 50 50 50
9 - Trail (mm) 69 69 66 66 63
10 - Wheelbase Length (mm) 1007 1023 1035 1052 1063
11 - Standover (mm) 756 784 808 826 850
12 - Stack (mm) 553 572 593 612 633
13 - Reach (mm) 365 375 385 395 405
Stem (mm) 100 100 100 110 110
Handlebar (mm) 400 420 420 440 440
Crankarm (mm) 170 170 172.5 175 175
0% Finance subject to status, written quotations on request.
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* Prices are estimates and will be calculated at checkout based on your minimum deposit.
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