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A gravel bike with a 6061-T6 aluminum frame, Shimano CUES 1x10 drivetrain with an 11–48-tooth cassette, WTB Nano 40 mm tires, 11.7 kg.
Detailed Description
Rock Machine follows the rule: Fun first, and then more fun. From humble garage beginnings in 1994 to the present, you can see Rock Machine bikes on World Cup tracks, but mainly on trails where Rock…
More about the brand Rock MachineA gravel bike with a 6061-T6 aluminum frame, Shimano CUES 1x10 drivetrain with an 11–48-tooth cassette, WTB Nano 40 mm tires, 11.7 kg.
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More informationSome parts of this page are translated automatically, so please excuse any imperfections.
Introduction and experience with the Lukk 50 bike in our article on iDomestik.cz
An article about the new LUKK gravel bike range in our article on iDomestik.cz
The Rock Machine Lukk 50 gravel bike in Matte Limerock Grey is designed for riding on asphalt, gravel, and light farm tracks. The 2026 model year targets experienced riders looking for versatile use and bikepacking with sensible weight and equipment. The 1×10 setup focuses on simple operation and a wide gear range.
The frame is made from heat-treated 6061-T6 aluminum alloy, intended for gravel loads and longer rides. Up front, it’s complemented by a rigid Gravel Specific aluminum fork made from shaped tubes for precise tracking. The FSA No.42/48 ACB headset supports stable handling and clean bearing seating. The bike is designed to run wider tires, which is key for traction and comfort on gravel.
Drivetrain: The 1×10 shifting uses a Shimano RD-U6000 rear derailleur. A Shimano CS-LG300-10 11–48 cassette and Shimano CUES FC-U6030-1 cranks with a 42T chainring deliver a 436% range.
Brakes: Shimano disc brakes run with 160 mm Shimano SM-RT10 rotors. The brake levers are Shimano BL-U6030-L and Shimano ST-U6030-R.
Wheels and tires: The wheelset is built on Stars J20 rims and Shimano HB-QC300 and FH-QC300 hubs. WTB Nano tires in 40 mm width are aimed at fast rolling on gravel.
Cockpit: One1 Compact handlebars are 400 mm wide with a 31.8 mm clamp diameter. The ONE1 Alloy stem has a -8° angle, the One1 Alloy seatpost uses a 27.2 mm diameter, and the saddle is a Selle Royal Flex Tex SRX.
The 6061-T6 aluminum frame maintains stiffness under power, which you’ll notice when riding out of the saddle and on flat terrain. The 40 mm tires increase mechanical comfort and help maintain speed on rough surfaces. The 11–48 range supports a steady pace on long climbs, even with loaded gear. Stability on descents is aided by the rigid fork and confident braking performance from the 160 mm rotors.
This bike is for riders who want a gravel bike for everyday training, weekend rides, and bikepacking without complicated maintenance. The 1×10 configuration suits anyone who prefers simple shifting and straightforward gear choices off-road. You’ll appreciate its versatile focus when switching between asphalt, gravel, and hardened forest roads.
EAN: 8592842214117
Gravelride / Lukk
| size | height (cm) |
|---|---|
| S | 155 - 170 |
| M | 165 - 180 |
| L | 175 - 190 |
| XL | 185 - 200 |
Manufacturer: BIKE FUN International s.r.o., Areál Tatry 1445/2, 74221 Kopřivnice, info@bikefunint.com, www.rockmachinebikes.com/en-en
heat-treated aluminum alloy 6061-T6
FSA No.42/48 ACB
Gravel Specific, Alloy Custom Tubing
Matte Limerock Grey
WTB Nano, 40mm
Stars J20
front Shimano HB-QC300 / rear Shimano FH-QC300
Sapim Leader, Stainless Black, nipple safety lock
1×10, 11–48, 436%
Shimano RD-U6000
-
Shimano CUES, FC-U6030-1, 42T, 170mm
Shimano CS-LG300-10, 11–48 teeth
Shimano BSA
Shimano CN-LG500
-
One1 Compact, width 400 mm, 31.8 mm
ONE1 Alloy, 31.8mm, -8°
Velo Reflective
front Shimano BL-U6030-L / rear Shimano ST-U6030-R
Shimano SM-RT10, 160 mm
Selle Royal Flex Tex SRX
One1 Alloy, 27.2 mm
11.7 kg
M (510 - 530 mm)
Aluminum Alloy
Mens / UNI
1x10
2026
Grey
Gravel and Bikepacking
The wheel manufacturer reserves the right to change the wheel specifications without any reason. In exceptional cases, the delivered product may differ from the specified specifications and images to improve the availability or functionality of the wheel.
Rock Machine follows the rule: Fun first, and then more fun. From humble garage beginnings in 1994 to the present, you can see Rock Machine bikes on World Cup tracks, but mainly on trails where Rock…
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Für Versand nach Deutschland, besuchen Sie bitte Rock Machine Lukk 50 Gravelbike Matte Limerock Grey
Für Versand nach Österreich, besuchen Sie bitte Rock Machine Lukk 50 Gravelbike Matte Limerock Grey
Chcesz dostarczyć towar do Polski? Sprawdź Rock Machine Lukk 50 rower gravel Matte Limerock Grey
Chcete doručit zboží do České republiky? Prohlédněte si Rock Machine Lukk 50 gravel kolo Matte Limerock Grey
Chcete doručiť tovar na Slovensko? Pozrite si Rock Machine Lukk 50 gravel bicykel Matte Limerock Grey
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