Race bred steel
You remember that scene from Days of Thunder where Harry’s building Cole’s race car? Well that’s what its like every time we build one of these! The DSS4 uses the most advanced steel tubing, the worlds finest frame finishing components and the excellent Columbus Futura fork. Building into an extremely capable steel race machine, ready to thrash it out at the pointy end of any race, or push hard on a fast road ride.
The bike has been race tested under the legs of Kibosh Racing, grabbing wins and podiums, with team members wowing spectators with the bikes incredible handling. Here’s what Josh Greet, Kibosh Racing Chief had to say about his own DSS4 machine:
“I am cornering twice as fast as I used to with the bike giving me a shit tonne of confidence. It feels so planted at all times. No skipping rear end whilst sprinting, just going forward very quickly.”
I think “twice as fast” may be a slight exaggeration, but you get where he’s going!

The frame is based around the incredible Columbus HSS tube set, Columbus’s ultra modern, hydro formed, oversized tubing. It builds into a stiff, direct frame, but never loses that steel feel and the confidence that brings. Something that will gain you many more seconds than simply counting grams.
Featuring an oversized opposed oval down tube, a heavily ovalized top tube and beautifully smoothed in wide set seat stays, putting stiffness where it’s needed. It makes an ultra modern frame, all with that feel of a finely tuned steel machine.
Finished with silver brazed, stainless steel braze on’s and bosses, including dead ended bottle bosses to reduce water ingress. These hidden details make sure your frame is ready to go season after season…
Available in both calliper and disc braked versions.
Frame tubing Columbus HSS // Fork Columbus Futura // Headset Integrated // Bottom bracket 68mm BSA // Seat tube 27.2mm seat post/31.6mm front mech band // Weight From 1700g // Calliper tyre clearance 28c // Disc tyre clearance 28c


Geometry and fit
The DSS4 has been developed on the race track under the legs of Kibosh racing. As such, this is a race bred machine with geometry tuned for out and out performance, whether on the race track or a fast road ride.
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We offer 3 “stock” sizes; 54cm, 56cm and 58cm, alongside our custom size program. The stock sizes tend to cover most bases. If you have fit details already, then you can send these through to us and we can see which would be the most suitable. If you’re not fitting on one of the below sizes or you want that stance just so, custom is the way to go…


Paint
We love paint and for the DSS bikes you have several options:
Single Colour – If you like it simple you can choose from any of our base colours, for a single colour with logo’s design. (Included in base frame price)
Signature – We have to come clean. The DSS4 Signature paint isn't available. It was team issue only! But read below to see how we can make it your own...
Custom Signature – Much like with the Kibosh racing colours taking inspiration from none other than James Hunt’s Marlboro Mclaren. We offer a special Custom Signature option on the DSS4. Let us know your favourite team and era from the golden days of motor racing and we’ll cook you up something to add few more mph to your ride! (Additional cost involved)

Still want more
We can offer a selection of custom upgrades to tune your bike to your exacting requirements.
Custom sizing £100
Di2 routing £65
Rack mounts £45
Mudguard eyes £55
Chain hitch £25
Pump peg £25

Build experience
Your personal specification sheet
We work closely with you in the realisation of you DSS bike and all builds get a personal specification sheet. This allows us to keep track of any custom extras you may require and allows you to see your custom sizing, so you know exactly what you are ordering. This also works as a great tool for us to discuss and finalise any custom paint designs.
From our customers
Josh Greet - Kibosh Racing ChiefI am cornering twice as fast as I used to with the bike giving me a shit tonne of confidence. It feels so planted at all times. No skipping rear end whilst sprinting, just going forward very quickly
Rob Saunders - Kibosh RacingI have ridden and raced a mix of steel and carbon bikes over the past 30 years. From my prized steel Robert Millar Peugeot in 1984 to various carbon rigs including the notable Cervelo RS frame which I raced extensively prior to Tom's build. In my experience to date, the Donhou HSS Columbus steel is hugely more responsive when racing and training than any carbon bike. The DSS4 is stiff, light and built to race crits and longer road races, both of which I have testament of last year. Yes it carries a tad more weight than carbon, however, this is offset in spades by the certainty it gives you in full flight, cornering and over the longer distance road races.