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SRAM Red + XX1 AXS Mullet Upgrade Kit
1.979,-
SRAM Apex XPLR AXS 1x12
899,-
Shimano GRX RX825 Di2 12 Speed
From 1.349,-
SRAM Force XPLR AXS Upgrade Kit
From 1.024,-
Compare Products (4)
This is what our customers think
Reviews
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Pros
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Cons
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According to the product specialist
Pros
| With this SRAM Red + XX1 AXS Mullet Upgrade kit, you can upgrade your gravel bike to a wider gear range. |
| The SRAM XX1 Eagle AXS rear derailleur also works with X01 and GX Eagle AXS groupsets. |
| Fully wireless shifting and therefore easy to mount on the bike. |
| The SRAM XX1 Eagle XG-1299 mtb cassettes are very light and strong because it is mostly cut from one piece of steel. |
| The gravel-oriented Sram Apex XPLR 1x12 shifts wirelessly, quickly and smoothly. |
| SRAM Apex AXS disc brakes give you smooth, powerful hydraulic braking. |
| A single front chainring, 12 speeds and a wide range of gears are an unbeatable combination on any terrain. |
| The crankset has X-SYNC direct-mount chainrings for good chain guidance. |
| The rear derailleur keeps the chain under tension and prevents it from chattering. |
| The Shimano GRX RX8255 Di2 12 speed groupset is a complete, high-end electronic groupset for gravel bikes. |
| This groupset's shifters feature a third Di2 button to operate your bike lights, computer or other devices. |
| The ergonomic design of the GRX RX825 shifters fits handlebars with a flare design and reduces hand strain, increasing your control on uneven terrain. |
| The rear derailleur is outfitted with the Shadow RD+ system for quiet and precise shifting, which also allows you to easily remove your rear wheel. |
| The hydraulic disc brakes are specifically tailored for gravel and off-road use, so you can count on precise and efficient brake performance no matter the circumstances. |
| The best braking and shifting performance for your gravel bike. |
| Modulated, very powerful braking power. |
| You won't have to trim your front derailleur anymore. |
| This XPLR rear derailleur cage is suitable for 10-44T and 10-36T cassettes. |
| The Orbit fluid damper in the rear derailleur ensures tight chain tension, even on uneven or bumpy terrain. |
Cons
| A 10/50 or 10/52 cassette jumps with larger steps when shifting, but on the other hand has a much larger gear range. |
| Apex is heavier than the more expensive Force or Red XPLR. |
| The new Shimano GRX RX825 is only available as 2X version. |
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Specifications
Disc Flat Mount
Disc Flat Mount
Disc Flat Mount
Disc Flat Mount
Bike Type
Mountain bike
Road bike
Gravel bike
Road bike
Gravel bike
Gravel bike
12 speed
12 speed
12 speed
12 speed
Electronic
Electronic
Electronic
Electronic
Crankset (Axle) Type
Hollowtech II
Suitable for
SRAM eTap AXS
SRAM Etap
SRAM XPLR
SRAM XPLR
Drivetrain Type
1 x 12
Type
Single
10 / 50
10 / 52
10 / 52
11 / 44
11 / 34
11 / 36
11 / 36
40
Medium Cage
SRAM DUB (29mm)
40
48 / 31
170 mm
172.5 mm
175 mm
172.5 mm
175 mm
170 mm
172.5 mm
172.5 mm
Bottom Bracket
No, not included
Front Derailleur
Braze-on
Hydraulic brake lines
Electronic derailleur cables
Hydraulic brake lines
Hydraulic brake lines
Hydraulic brake lines
Best
Good
Colour
Black
Black
Black
Black
Type
1x12
1x12
2x12
1x12
2x12
2x12
Diameter Disc Brake Rotor
160 mm front / 160 mm rear
160 mm front / 160 mm rear
Brake Mount
Flat Mount
Crankset Type
Single
Double
Factory Packaging
Factory Packaging
OEM
OEM
Factory Packaging