Posted on August 15, 2022 by Cory Benson

UK small-batch & custom mountain bike builder Radical All Mountain is redefining the limits of what they call off-road with their new steel Surveyor gravel bike. Living up to its radical name, the Surveyor is said to be a gravel bike that will make you rethink what you can ride on drop bars and skinny (for a mountain biker) tires…

“Take off the flat cap and oil that hipster beard; no more will you be clinging on down those valley and single track descents… You’ll be pushing so hard you’ll be at the pub faster than you can say IPA“.

c. Radical All Mountain Cycles

Unsurprisingly, the Radical All Mountain Surveyor gravel bike was reverse engineered from Radical’s own mountain bikes. Basically, it’s more of a toned-down Chilli Dog, than a beefed-up road bike. It’s got all the features you’d expect out of a modern trail bike, just reimagined a bit for a rigid bike with wide drop bars:  long reach + short stem, low ride height & a slack front end, plus dropper post compatibility.

And it’s custom, so you can kinda get whatever you want. A couple of even more affordable stock sizes are also in the works.

Like their enduro hardtail, the Surveyor is welded by hand in the UK “by a guy with a beard & dodgy haircut” from a mix of super-thin air-hardened Reynolds 853/631/525 & Dedacciai Zero Uno double-butted steel tubing to get the ideal balance of strength and ‘steel is real’ ride quality, while keeping weight in check. Frames are then painted by hand and topped off with a classic pewter headbadge, cast “by hand… by a bloke… in a shed“.

The Radical All Mountain Surveyor was designed to ride any adventure you can dream up – everything from quiet roads to singletrack – with a definite leaning towards more time off-road, “blasting through the woods”. Radical isn’t sharing just how radical and progressive the geometry is just yet, as they are still prototyping and refining production geo. But for now, the gravel bike is custom-only, so they’ll work out the best possible geometry for each buyer.

What is set are the Surveyor’s key details. Clearance for up to 700x47mm or 650×2.1″ tyres [sic] with 1x drivetrains only and a max 44T chainring. A traditional 68mm BSA threaded bottom bracket, 12x142mm rear thru-axles spacing, IS brake mount, a 44mm headtube to fit tapered or straight steerer forks, and full-length external shift & cable routing and internal routing for a 30.9mm dropper seatpost with a 33.1mm external clamp.

The frame gets a regular seatpost bottle cage mount, a standard pair & a 3-pack of anything cage bosses on the downtube, plus a direct toptube bag mount, and the option for mounts under the downtube. Finally, it gets an internal anti-rust coating, closed “stop-ended” braze-on bosses so water can’t get inside the frame, plus a BB drain hole to prevent corrosion.

The new Radical All Mountain Surveyor is available now as a custom frame for £1395. That gives you the freedom to pick any color and make minor geometry tweaks, plus you can add or delete braze-on mounts as desired, like rack and/or fender tabs. Custom frame delivery lead time is quoted at 16 weeks, so get an order in now to be riding a Surveyor by the end of the year.

Two stock sizes (M & L) are also expected in the near future, once Radical All Mountain irons out the final production geometry, with frame prices starting at £1095. Radical All Mountain also offers a flexible payment schedule for custom bikes, with a £500 non-fundable deposit, the next £500 before actual frame building starts, and the remainder by when it’s time to ship the completed frame to you.

Cory Benson is the EU Tech Editor of Bikerumor.com.

Cory has been writing about mountain bikes, enduro, cyclocross, all-road, gravel bikes & bikepacking on and off for over 25 years, since before several of these even had names in our industry.

Prior to that (and at times, concurrently), Cory worked as an Architect specializing in environmental sustainability, a IBD bike shop designer & consultant, an independent product designer, a bike shop mechanic, and a mountain biking instructor.

Based in the Czech Republic for over 15 years, Cory spends much of his time traveling around Europe, riding bikes, and meeting directly with many of cycling’s key European product developers, industry experts & tastemakers for an in-depth review of what’s new, and what’s coming next. A technical off-road rider at heart since the 1990s, Cory’s cycling has evolved to cover everything from the wide range of riding aero road bikes on dirt roads to thrashing enduro bikes in the European bikeparks & trail centers, with plenty of XC, CX & gravel in between.

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