Test: The Radon Render 8.0, with its price of almost 4.000 euros, is a declaration of war against the competition in terms of price. With a Bosch Performance CX motor, a large 625Wh battery, at least a solid carbon frame, no savings were made on the equipment either. In practice, it turns out to be a surprisingly strong all-rounder, but it doesn't come without weaknesses.
Radon Render 8.0: The Facts
Suspension travel: 150 / 140mm
wheel size: 29 inch
Drive: Bosch Performance CX
Display / control unit: Bosch Purion
Battery capacity (test bike): 625Wh
Frame material: carbon / aluminium
Weight complete bike (size L without pedals): 23,83kg
Maximum weight allowed: 135kg
Price: € 3.999
| frame | render hybrid |
| suspension fork | RockShox Lyric Select |
| Drive | Bosch Performance CX |
| Rechargeable battery | Bosch Power Tube 625 |
| Suspension shocks | RockShox Deluxe Select+ |
| Wheels | Shimano Alivio hubs / Alex MD30 rims |
| Tire VR | Maxxis Minion DHF Exo 2,5" |
| Tire HR | Maxxis Minion DHRII Exo 2,4" |
| derailleur | Sram SX Eagle |
| Gear levers | Sram NX Eagle |
| Crank | Acid E crank |
| Front derailleur | Without |
| Brake | Magura MT Trail Custom |
| Brake discs | Magura Storm 203/180mm |
| Seat post | Radon Dropper 130mm (L) |
| Saddle | Saddle Italia X1 |
| Stem | Race Face Chester |
| Links | Race Face Chester |
The new E-MTB from Radon looks fast and aggressive. Chic frame lines, beefy 29er tires, thick spring elements - yes, that promises fun on the trail! The wallet is also happy - because for almost 4.000 euros the E-MTB with a new Bosch CX motor and large battery, main frame made of carbon and at least solid equipment really belongs in the "bargain" category.
Convincing on the way up
The feeling on the bike is all the more surprising. Not because it's bad, quite the opposite. No, the Render is very comfortable, very well balanced and a real feel-good bike. You take a seat in the center of the bike, which pays off on the climbs. Both the chainstays and the main frame are longer than average, but without going to extremes here. This means that climbing passages can also be mastered wonderfully while sitting - as long as it doesn't get too tight. With small curve radii, the rather long wheelbase needs to be treated with a little sensitivity.
Geometry Radon Render 8.0
| M | L | XL | |
|---|---|---|---|
| seat tube (in mm) | 425 | 455 | 490 |
| Top tube horizontal (in mm) | 592 | 615 | 637 |
| head tube (in mm) | 110 | 120 | 135 |
| chainstay (in mm) | 458 | 458 | 458 |
| Wheelbase (in mm) | 1212 | 1240 | 1263 |
| Steering angle (in °) | 65.5 | 65.5 | 65.5 |
| Seat angle (in °) | 76.5 | 75.5 | 75.5 |
| Reach (mm) | 441 | 461 | 478 |
| Stacks (in mm) | 616 | 626 | 640 |
Of course, the Bosch Performance CX motor is also responsible for the convincing performance on the flat and uphill. The drive, which is controlled on the Radon via the minimalist Purion display, simply does its job well: It is dynamic and lively when accelerating, of course when gliding along comfortably and can also really bang in when it is required of it on steep sections. The fact that it then emits a fairly loud hum, especially at higher cadences, takes some getting used to, but we can get over it in view of the performance.
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Rear triangle with small deficits
The render then gives a similarly positive picture on the trail back towards the valley as on the way up. Here, too, it benefits from its well thought-out geometry and central seating position. The long wheelbase and the large wheels bring a lot of smoothness, whereby the Radon feels particularly comfortable when the trail isn't too narrow. The solid RockShox suspension works well, although the fork makes a better impression here than the damper in combination with the rear end. On the one hand, we miss a little sensitivity here, but at the same time it goes through the suspension travel quite quickly when you increase the speed and the trails become more demanding.
The rest of the equipment works largely flawlessly. If we wanted to look for the hair in the soup: The 2-piston caliper of the Magura MT Trail brake system at the rear, together with the 180mm disc, offers little in reserve for long descents. We would also like to see a tire with a more stable carcass, at least on the rear wheel. However, the Maxxis combination of DHF and DHRII is generally a very good choice. Last but not least, quite loud rattling spoiled the downhill fun a little. This did not come from the battery cover, but from the inside of the frame. We suspect that this is where the internally running cables hit the frame.
The big Velomotion E-MTB test 2020: test fields, individual tests and background information
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Our test conclusion
E-MTB test 2020: The best e-mountain bikes for every application
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Our test candidates in the bestseller category: BH AtomX Lynx 6 Pro | BMC Trailfox AMP SX two | Bottechia proton | Bulls E-Stream Evo AM 3 | Canyon Neuron: ON 9.0 | Centurion No Pogo E R2600i | Corratec E-Power RS 160 Pro | Cube Stereo Hybrid 140 HPC™ | Ducati MIG-S | Flyer Uproc 3 6.50 | Focus Jam² 6.8 Nine | Fuji Blackhill Evo 27,5+ 1.3 | Ghost Hybrid ASX 6.7+ | Giant Stance E Pro 0 | GT Force AMP | Haibike XDURO AllMtn 3.5 | Hercules Nos Pro FS 1.1 | Kettler Scarpia FS 2.0 | Kona Remote CTRL | KTM Macina Chacana 291 | Lapierre Overvolt AM 7.6 | Nox Hybrid All-MTN 5.9 Comp Sachs | Radon Render 8.0 | R Rayom FullRay E-Seven 9.0 | Scott Strike and Ride 910 | Specialized Turbo Levo | Stevens E-Pordoi | Stevens E-Sledge ES | Thok Mig 2.0 | TrekRail 7
You can also find this at the kiosk Velomotion E-MTB test yearbook 2020. There you will find all 57 individual tests of the bikes, exciting stories and advice on everything to do with e-mountain bikes on over 160 pages.
Here you can also order the E-MTB yearbook 2020 directly from us.
