Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 27.5" -
Travel Front 140mm -
Travel Rear 140mm -
Fork Fox Factory Float 34
-
Groupset EX1, e*thirteen TRS Race -
Suspension Full -
Motor Brose mid-drive -
Battery IPU.660.R Carbon, removable -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Aluminum
Suspension Fork
FOX 34 Float Factory, FIT4, Kashima, Boost
Rear Shock
FOX Float DPS EVOL Factory, Kashima
Drivetrain
Rear Derailleur
SRAM EX1
Front Derailleur
N/A
Shift Levers
SRAM EX1, 8-speed
Cassette
SRAM EX1, 11-48 tooth, 8-speed
Crank
e*thirteen TRS+ Carbon, 165mm length, Boost
Chain
8-speed
Chain Guide
N/A
Pedals
N/A
Wheels
Front Hub
DT Swiss HX 1501, Boost front and rear
Rear Hub
DT Swiss HX 1501, Boost front and rear
Rims
DT Swiss HX 1501 Spline One 30
Spokes
DT Swiss
Tires
Continental Mountain King RaceSport, 2.4"
Brakes
Brakes
Magura MTR-21 with Magura Storm HC 203mm front/180mm rear rotors
Brake Levers
Magura MTR-21
Cockpit
Stem
Crankbrothers Iodine, 50mm (S), 65mm (M-L), 80mm (XL)
Handlebar
Crankbrothers Cobalt, 740mm (S), 760mm (M-L), 780mm (XL)
Grips
Ergon GD10 Slim
Headset
Rotwild MHS I AR
Seat
Saddle
Ergon SMA30
Seatpost
Crankbrothers Highline, 100mm drop (S), 125mm drop (M), 160mm drop (L-XL)
Motor & Battery
Motor
Brose Drive S Air Cooler
Battery
IPU.660.R Carbon, removable
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.44 mm | 1.42 mm | 1.35 mm | 1.3 mm |
| Bottom Bracket Height | 337.5 mm | 337.5 mm | 337.5 mm | 337.5 mm |
| Stack | 601 mm | 601 mm | 611 mm | 620 mm |
| Reach | 418 mm | 424 mm | 451 mm | 476 mm |
| Top Tube Length | 591 mm | 596 mm | 611 mm | 636 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 435 mm | 440 mm | 475 mm | 510 mm |
| Head Tube Angle | 67 ° | 67 ° | 67 ° | 67 ° |
| Head Tube Length | 110 mm | 110 mm | 120 mm | 130 mm |
| Chainstay Length | 446 mm | 446 mm | 446 mm | 446 mm |
| Wheelbase | 1158 mm | 1164 mm | 1195 mm | 1224 mm |
| Bottom Bracket Drop | 18 mm | 18 mm | 18 mm | 18 mm |
| Standover Height | 747 mm | 752 mm | 766 mm | 774 mm |
| Wheels | 27" | 27" | 27" | 27" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
Model Overview
R.X+ Trail Ultra belongs to the Rotwild E Rxplus model. There are 5 e-bikes that carry this model name. Check out the entire range from 2018 of this model, by clicking this link.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Trail e-bikes average price
Our math shows that the average cost of a dependable Trail e-bike is 3365$. However, even though the average price of a Trail e-bike is lower, you might still be able to get a top-quality e-bike. To sum up, when you purchase your e-bike, make sure to check if it has reviews, and also do some components research.
R.X+ Trail Ultra components
Fork
The R.X+ Trail Ultra comes factory-installed with the Fox Factory Float 34 fork. This has a travel range of 140mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
The shock that’s installed on this e-bike is FOX Float DPS EVOL Factory, with a travel distance of 140mm. Bike rear shocks increase the riding comfort, and also give you more control over technical trails. In short, a full-suspension bike will give you the smoothest ride possible.
Wheels
The wheels on R.X+ Trail Ultra are the 27.5″ aluminum type. These wheels will provide you with more control over the e-bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The R.X+ Trail Ultra comes with Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, you can ride your bike with confidence.
Sizes
R.X+ Trail Ultra comes in 4 sizes, that range from 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, it won’t take much to find one that’s right for you.
Dropper post
A dropper post is included with the R.X+ Trail Ultra. A dropper post is a must-have these days if you’re riding anything remotely technical. The main benefit of a dropper post is increased safety while riding. As mentioned above, the lever system allows you to quickly move the saddle out of the way when approaching descents or trail obstacles.