Radon Swoop 170 10.0 first ride review

How rad is Radon’s new 29er?

GBP £3,230
(approx €3,729 shipped)
Radon Swoop 170 10

The Radon Swoop 170 has received its fair share of high praise in the past – even bagging the win in our 2017 Bike of the Year shootout.


With a few subtle changes implemented – and now packing 29in wheels – does this 2019 version live up to its dominating ancestor’s reputation?

Radon Swoop 170 10.0 frame

There haven’t been any massive changes to the Swoop chassis. It’s still all-aluminium, and uses the same four-bar linkage design to provide a trail-crushing 170mm of rear wheel travel.

Radon has retained its three-position flip-chip, which lets you change the bottom bracket height and head/seat angles to suit your riding style, but has updated the geometry to suit the new 29in wheels.

The head angle now ranges from a more trail-friendly 65.8 degrees to an enduro-style 64.8 degrees, while the seat angle should keep you in a comfortable climbing position, at 75.8 degrees in its slackest setting.

Bottom bracket drop varies from 26mm to 39mm, and there are on-point reach measurements across the three frame sizes (17, 19 and 21in), from 462mm to 491mm.

Radon Swoop 170 10.0 kit

Three-position flip-chip, BB height and head seat angles changer
Radon’s three-position flip-chip changes the bottom bracket height and head/seat angles.
Steve Behr

You get an impressive selection of parts for the price. A Factory-level Fox fork and shock take care of suspension duties, and Fox’s Transfer dropper post is another great asset.

The SRAM GX-based drivetrain gives you 12 gears and a wide range, while the brand’s top-flight Code RSC brakes provide plenty of power.

Newmen wheels may be unknown to most, but this German brand is putting out some quality kit, and the Evolution SL A.30s on the Swoop 10.0 are a prime example.

Race Face and SDG finish things off nicely with some great cockpit kit, and the Schwalbe Magic Mary and Hans Dampf tyre pairing is a solid combination for most riding conditions.

Radon Swoop 170 10.0 first ride impressions

Radon scores top marks for versatility. I enjoyed the bike most with the flip-chip in its lowest setting, because the lower bottom bracket height gave me the most confidence when swooping through the turns, without causing too many pedal strikes.

Even with the seat tube at its slackest, it’s steep enough to let you climb in comfort. The long-ish reach and slack-ish head angle mean the Swoop’s handling is balanced and stable at speed, but it’s still able to negotiate tighter sections with ease.

In terms of suspension, the Radon doesn’t have the most sensitive or active back-end I’ve tried. While this means there’s plenty of support when pedalling, the bike does feel a little harsh until it’s sat deeper into its travel. A simple re-tune of the Fox Float X2 piggyback shock should remedy this though.

Cyclist riding Radon Swoop 170 10.0
Quirks aside, the Swoop 10.0 is a confident do-it-all thrasher.
Steve Behr

The 29 x 2.35in Magic Mary tyre up front was also visibly narrower than the 650b version I compared it to on another test bike, with both mounted on 30mm (internal) rims.

This made the front end just a touch more nervous than I’d have expected of this popular tyre. Again, this is something that could be sorted easily and relatively cheaply with a quick tyre swap. These quirks aside, the Swoop 10.0 is a confident do-it-all thrasher, and great value for money.

Radon Swoop 170 10.0 early verdict

A real go-anywhere, ride-anything bike – and at a decent price too.

Radon Swoop 170 10.0 specifications

  • Sizes (*tested): 17*, 19, 21in
  • Weight: 14.81kg
  • Frame: Aluminium, 170mm (6.7in) travel
  • Fork: Fox 36 Float, Factory FIT GRIP2, 170mm (6.7in) travel
  • Shock: Fox Float X2, Factory
  • Chainset: SRAM X1 carbon Eagle
  • Cassette: SRAM GX Eagle XG-1275
  • Chain: SRAM GX Eagle
  • Derailleurs: SRAM X01 Eagle
  • Shifters: SRAM GX Eagle
  • Wheelset: Newmen Evolution SL A.30 wheels
  • Tyres: Schwalbe Magic Mary ADDIX Soft Super Gravity (f) and Schwalbe Hans Dampf ADDIX Soft Super Gravity (r) 29 x 2.35in
  • Stem: Race Face Turbine R 35, 40mm
  • Bar: Race Face Turbine R 35, 800mm
  • Grips: SDG
  • Headset: FSA
  • Saddle: SDG Fly MTN 2
  • Seatpost: Fox Transfer Factory 150mm dropper
  • Brakes: SRAM Code RSC, 200/180mm rotors

Radon Swoop 170 10.0 geometry

  • Seat angle: 76.8 / 76.3 / 75.8 degrees
  • Head angle: 65.8 / 65.3 / 64.8 degrees
  • Chainstay: 17.52in / 44.5cm
  • Seat tube: 17.13in / 43.5cm
  • Top tube: 23.66in / 60.1cm
  • Head tube: 4.33in / 11cm
  • Wheelbase: 48.7in / 1,237mm
  • Stack: 25.12in / 63.8cm
  • Reach: 18.19in / 46.2cm