Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Fork Suntour XCM -
Groupset Altus -
Suspension Hardtail -
Motor Bafang 250W 95Nm mid-drive -
Battery CTM IGB 630Wh / 36V / 17.5Ah -
Drivetrain 1 × 9 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
MD
155cm - 175cm
LG
170cm - 190cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
ALU 6061, M (16"), L (18")
Suspension Fork
Suntour XCM RL DS 29"
Drivetrain
Rear Derailleur
1. Shimano Altus RD-M2000 2. LTWOO RD-V5009-L
Shift Levers
Shimano Altus SL-M2000RA 9 sp.
Crank
Bafang 38T, 170mm
Chain
KMC X9e 124L
Pedals
VPE-537
Wheels
Rear Hub
Novatec D041DSB,15mm/D142TSE,36H,CL
Rims
WTB ST i29 TCS 2.0 29" 36H
Tires
WTB Ranger 29x 2.25" Comp
Brakes
Brakes
Shimano MT200 / SMRT10M
Cockpit
Stem
CTM LCS/60mm
Handlebar
CTM rise bar, 700/31.8 mm
Headset
NECO H153
Seat
Saddle
SR Vivo Ergo Lady
Seatpost
CTM 350x31.6 mm
Motor & Battery
Motor
BAFANG M500 / 250W / 95Nm
Battery
CTM IGB 630Wh / 36V / 17.5Ah
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | MD | LG |
|---|---|---|
| Stack Reach Ratio | 1.47 mm | 1.45 mm |
| Front Center | 667 mm | 681 mm |
| Rake | 46 mm | 46 mm |
| Stack | 598 mm | 607 mm |
| Reach | 408 mm | 418 mm |
| Top Tube Length | 579 mm | 591 mm |
| Seat Tube Angle | 73 ° | 73 ° |
| Seat Tube Length | 420 mm | 470 mm |
| Head Tube Angle | 69 ° | 69 ° |
| Head Tube Length | 120 mm | 130 mm |
| Chainstay Length | 478 mm | 478 mm |
| Wheelbase | 1142 mm | 1156 mm |
| Wheels | 29" | 29" |
| Rider Min Height | 155 cm | 170 cm |
| Rider Max Height | 175 cm | 190 cm |
About this model
RUBY completes the Ctm E Ruby model. CTM launched 6 e-bikes of this model so far. You can get a glimpse at all models from 2023, by clicking on this link.
Model range prices
CTM RUBY 2023 is the most affordable e-bike of this model and has a price of 2441$. On the other hand, CTM RUBY X Pro 2023, is the most expensive and costs 2653$.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Average price for Trail e-bikes
According to our math, the average price for a trustworthy Trail e-bike is 3365$. However, even if your budget is less than the average, you might still be able to get a top-quality Trail e-bike. To make sure you don’t pay a higher amount than normal for your e-bike, always do some components analysis and read reviews.
Furthermore, this bike was made available in 2023 for 2441$. If we compare this with the average Trail e-bike cost we notice that the price is 37.85% smaller.
Overview of components
Fork
The RUBY comes factory-installed with the Suntour XCM fork. This has a travel range of mm. Bike forks absorb the shocks and give you a smooth and pleasant ride. In short, you should always ensure you have a good fork when purchasing a bike.
Wheels size
The RUBY 2023 e-bike is equipped with 29″ aluminum wheels when leaving the factory. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, 29″ wheels will make your e-bike react slower to obstacles you may encounter.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The RUBY comes with Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
Sizes
There are 2 sizes available for this model. Rider height can be anywhere between 155 cm – 190 cm (5.09 ft – 6.23 ft). In short, you can easily find one that suits you.