138 (Einstieg: tief)
diamant
Crosscountry
138 (Einstieg: tief) is an alloy electric cross-country mountain bike (2023), by Diamant. Rider-wise, it fits riders who prioritize comfort and confidence on longer off-road rides, with a setup that gives you a comfort-leaning position, and is best for smoother trails and efficient rolling. Its profile is strongest in areas like good fit flexibility for dialing in rider position, strong speed potential on smoother terrain, and all-round climbing capability rather than a narrow specialty. That said, what it gives up slightly is a firmer ride feel than comfort-first options. Compare this bike on MatchBikes.com to similar cross-country models.
6.1
Rating

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Score Summary
Performance
5.8
Value
6.6
Fit
6.5
Performance
Built for speed and efficiency
Speed
7.2
High
Climbing Efficiency
5.4
All-Rounder
Suspension
4.0
Basic bump control
Fit
Dialed-in Fit & Comfort
Riding Position
3.9
Comfort
Fit Flexibility
8.5
Adjustable
Ride Comfort
6.2
Race-Stiff
Value
Value for Money
6.6
Fair Value
Surface Range
Flow TrailsBattery
Battery
4.9
Regular rides
Specifications
General
Brand
diamant
Model
138 (Einstieg: tief)
Year
2023
Price
$4,254
Category
E-bikeMountain
Sub Category
Crosscountry
Groupset
Deore
Frame
Frame
Hochleistungsfähiger Aluminiumrahmen mit hydrogeformten Rohren, interne Zugführung, externe Akku-Halterung, Post Mount-Scheibenbremsaufnahme, 135 x 5 mm-Schnellspannachse
Suspension Fork
SR Suntour Mobie 34, Luftfeder, verstellbare Zugstufe und Druckstufe, konischer Aluminiumgabelschaft, 15 x 100 mm Steckachse, 60 mm Federweg
Suspension Type
Hardtail
Drivetrain
Shift Levers
Shimano Deore M5130, 10fach
Rear Derailleur
Shimano Deore M5130, GS, Shadow Plus
Cassette
Shimano LG600, 11-43, 10fach
Crank
ProWheel, Aluminium, 170 mm Kurbelarmlänge
Chain
Shimano LG500
Wheels
Rims
Alex MD35, passer til Tubeless, 32-Loch, 35 mm Innenweite, Presta-Ventil Bontrager, gedichtete Lager, 32-Loch, 15-mm-Aluminiumsteckachse Shimano Alivio M4050,135 x 5 mm Schnellspannachse
Tires
Schwalbe Hurricane, reflektierend, Drahtwulstkern, 57-584
Brakes
Brake Type
Hydraulic Disc
Brake Description
Front: Shimano MT401 / MT420 hydraulische Scheibenbremse, 180 mm Scheibendurchmesser Shimano RT30, Center Lock, 203 mm // Shimano EM300, Centerlock-Scheibenaufnahme, 180 mm
Cockpit
Stem
Bontrager Aluminium, 31,8 mm, verstellbar, Blendr-kompatibel
Handlebar
Aluminium-Lowriser, 31,8 mm, 25 mm Rise, 11 Grad Krümmung, 660 mm Breite
Seat
Saddle
Brooks Cambium C67 Special Edition
Seatpost
Aluminium, gefedert, 31,6 mm, 300 mm Länge
E-Bike Components
Motor
Bosch Performance Line CX, 25 km/h
Battery
Bosch Powerpack 545 / 725, Smart System
Charger
Bosch Standardladegerät 4 A, 230 V, Smart System
Range
4.9
Geometry
| Measurement | SM | SM | SM | SM | MD | MD | MD | MD | LG | LG | LG | LG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.581 mm | 1.581 mm | 1.581 mm | 1.581 mm | 1.617 mm | 1.617 mm | 1.617 mm | 1.617 mm | 1.638 mm | 1.638 mm | 1.638 mm | 1.638 mm |
| Bottom Bracket Height | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm | 289 mm |
| Front Center | 634 mm | 634 mm | 634 mm | 634 mm | 644 mm | 644 mm | 644 mm | 644 mm | 654 mm | 654 mm | 654 mm | 654 mm |
| Rake | 45 mm | 45 mm | 45 mm | 45 mm | 44 mm | 44 mm | 44 mm | 44 mm | 35 mm | 35 mm | 35 mm | 35 mm |
| Trail | 89 mm | 89 mm | 89 mm | 89 mm | 86 mm | 86 mm | 86 mm | 86 mm | 83 mm | 83 mm | 83 mm | 83 mm |
| Stack | 596 mm | 596 mm | 596 mm | 596 mm | 621 mm | 621 mm | 621 mm | 621 mm | 652 mm | 652 mm | 652 mm | 652 mm |
| Reach | 377 mm | 377 mm | 377 mm | 377 mm | 384 mm | 384 mm | 384 mm | 384 mm | 398 mm | 398 mm | 398 mm | 398 mm |
| Top Tube Length | 559 mm | 559 mm | 559 mm | 559 mm | 576 mm | 576 mm | 576 mm | 576 mm | 590 mm | 590 mm | 590 mm | 590 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 450 mm | 450 mm | 450 mm | 450 mm | 500 mm | 500 mm | 500 mm | 500 mm | 550 mm | 550 mm | 550 mm | 550 mm |
| Head Tube Angle | 69 ° | 69 ° | 69 ° | 69 ° | 69.5 ° | 69.5 ° | 69.5 ° | 69.5 ° | 70 ° | 70 ° | 70 ° | 70 ° |
| Head Tube Length | 140 mm | 140 mm | 140 mm | 140 mm | 165 mm | 165 mm | 165 mm | 165 mm | 195 mm | 195 mm | 195 mm | 195 mm |
| Chainstay Length | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm | 483 mm |
| Wheelbase | 1110 mm | 1110 mm | 1110 mm | 1110 mm | 1120 mm | 1120 mm | 1120 mm | 1120 mm | 1130 mm | 1130 mm | 1130 mm | 1130 mm |
| Bottom Bracket Drop | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm |
| Standover Height | 682 mm | 682 mm | 682 mm | 682 mm | 687 mm | 687 mm | 687 mm | 687 mm | 727 mm | 727 mm | 727 mm | 727 mm |
| Wheels | 27" | 27" | 27" | 27" | 27" | 27" | 27" | 27" | 27" | 27" | 27" | 27" |
| Rider Min Height | 158 cm | 158 cm | 158 cm | 158 cm | 168 cm | 168 cm | 168 cm | 168 cm | 176 cm | 176 cm | 176 cm | 176 cm |
| Rider Max Height | 170 cm | 170 cm | 170 cm | 170 cm | 179 cm | 179 cm | 179 cm | 179 cm | 187 cm | 187 cm | 187 cm | 187 cm |





















































