SRAM race/mtb 1x11-speed
28,96
SRAM race/mtb 1x11-speed
SRAM GX Eagle 12-speed
24,13
SRAM GX Eagle 12-speed
Shimano XTR M9000 11-speed
30,89
Shimano XTR M9000 11-speed
BBB Cycling BDP-17 Ceramic RollerBoy
38,63
BBB Cycling BDP-17 Ceramic RollerBoy

Compare Products (4)

SRAM race/mtb 1x11-speed
SRAM GX Eagle 12-speed
Shimano XTR M9000 11-speed
BBB Cycling BDP-17 Ceramic RollerBoy
SRAM race/mtb 1x11-speed

28,96

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SRAM GX Eagle 12-speed

24,13

View product
Shimano XTR M9000 11-speed

30,89

View product
BBB Cycling BDP-17 Ceramic RollerBoy

38,63

View product

This is what our customers think

Reviews
(36)
(24)
(3)
(20)
Pros
Gied quality
Fluids
Light
Good bearings
Fast delivery (2x)
Bearing
Top
Always good and fast service at Mantel
Top shelf
quality (2x)
Price (2x)
Good price. (2x)
Quiet (2x)
Cons
Pricey
bearings not running as smoothly as expected
price compared to similar shimano
They are not cheap
Pricey
Disposable bearings
Oversized delivery packaging
No assembly instructions
-
assembly instruction is missing
For being ceramic turn anyway better expectach.
No new mounting bolts

According to the product specialist

Pros
These derailleur wheels have a narrow-wide fit, so your chain stays in place very well.
With new derailleur wheels, your bike will run quietly again and shift gears properly!
-
The low-friction ceramic bearings are extremely smooth and durable.
As the RollerBoys are made of a hard glass fibre composite they will not wear easily.
Cons
-
-
-
-

Specifications

Number of gears
11 speed
12 speed
11 speed
12 speed
Sram derailleur type
Rival 1
CX1
Force 1
X1
XX1
X01
GX1
GX Eagle
NX Eagle
1x12
Type of Shimano derailleur
Shimano XTR M9000
Shimano XTR M9050 Di2
Ceramic
No
No
No
Yes
Number of teeth
12 Teeth
12 Teeth
14 Teeth
11 Teeth
12 Teeth
14 Teeth
Colour
Black
Black
Black
Black
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