Models · Rock Machine · Lukk
Rock Machine Lukk CR (carbon) (2025)
Geometry ?
Rock Machine Lukk CR (carbon) 2025 geometry in sizes S–XL: stack 554–600 mm, reach 366–386 mm, head angle 70–71°.
| S | M | L | XL | |
|---|---|---|---|---|
| Stack | 554 mm | 567 mm | 582 mm | 600 mm |
| Reach | 366 mm | 372 mm | 378 mm | 386 mm |
| Head angle | 70° | 70.5° | 71° | 71° |
| Seat angle | 74.5° | 74° | 73.5° | 73.5° |
| Seat tube (?) | 500 mm | 520 mm | 540 mm | 560 mm |
| Head tube | 135 mm | 147 mm | 159 mm | 178 mm |
| Top tube (effective) | 520 mm | 535 mm | 550 mm | 564 mm |
| BB drop | 72 mm | 72 mm | 72 mm | 72 mm |
| Chainstay | 424 mm | 424 mm | 424 mm | 424 mm |
| Wheelbase | 1019 mm | 1024 mm | 1030 mm | 1044 mm |
| Stock build by size | ||||
| Cranks | 170 mm | 170 mm | 170 mm | 170 mm |
| Stem | 80 mm | 80 mm | 80 mm | 80 mm |
| Stem angle | −8° | −8° | −8° | −8° |
| Bar width | 420 mm | 420 mm | 440 mm | 440 mm |
(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).
Source: rockmachinebikes.com, checked 1 Nov 2026 · bar position: worked out from published data
Stock build
Lukk CR 90
- Groupset
- Shimano GRX Di2 1×12 (RD-RX827, FC-RX820 42T, 10-51)
- Shifters
- Shimano GRX Di2
- Cranks
- SHIMANO GRX FC-RX820 42T
- Stem
- ONE1 Alloy, 31.8 mm, −8°
- Handlebar
- Satori Allroad Swift
- Seatpost
- ONE1 carbon One1 Race 27.2
- Saddle
- Selle Royal Flex Tex SRX
Lukk CR 80
- Groupset
- Shimano 105 R7100 2×12 (50-34)
- Shifters
- Shimano 105 ST-R7120
- Cranks
- SHIMANO 105 FC-R7100 50-34T
- Stem
- ONE1 Alloy, 31.8 mm, −8°
- Handlebar
- Satori Allroad Swift
- Seatpost
- ONE1 carbon One1 Race 27.2
- Saddle
- Selle Royal Flex Tex SRX
Lukk CR 70
- Groupset
- Shimano GRX RX610 1×12 (40T)
- Shifters
- Shimano GRX BL-RX610
- Cranks
- SHIMANO GRX FC-RX610-1 40T
- Stem
- ONE1 Alloy, 31.8 mm, −8°
- Handlebar
- Satori Allroad Swift
- Seatpost
- ONE1 carbon One1 Race 27.2
- Saddle
- Selle Royal Flex Tex SRX
Lukk CR 65
- Groupset
- Shimano CUES U6000 2×11 (46-32)
- Shifters
- Shimano CUES ST-U6030
- Cranks
- Shimano FC-U6030-2 46-32T
- Stem
- ONE1 Alloy, 31.8 mm, −8°
- Handlebar
- Satori Allroad Swift
- Seatpost
- ONE1 carbon One1 Race 27.2
- Saddle
- Selle Royal Flex Tex SRX
Source for all builds: rockmachinebikes.com, checked 1 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size S (stack 554 / reach 366 mm).
Accent CX-One Carbon (2027)size S · stack 554 / reach 366 mmAdris Aventure (2026)size S · stack 554 / reach 366 mmIsaac Torus (2026)size S · stack 554 / reach 366 mmMassi Across Carbon (2026)size 50 · stack 554 / reach 366 mmPardus Uragano Sport (2026)size S · stack 554 / reach 366 mmSuperior GA (carbon) (2026)size S · stack 554 / reach 366 mm
Stack and reach within 12 mm of size M (stack 567 / reach 372 mm).
Adris Aventure (2026)size M · stack 567 / reach 372 mmBulls Grinder / Daily Grinder (2026)size S · stack 567 / reach 372 mmIsaac Torus (2026)size M · stack 567 / reach 372 mmMassi Across Carbon (2026)size 52 · stack 567 / reach 372 mmPardus Uragano Sport (2026)size M · stack 567 / reach 372 mmSuperior GA (carbon) (2026)size M · stack 567 / reach 372 mm
Stack and reach within 12 mm of size L (stack 582 / reach 378 mm).
Adris Aventure (2026)size L · stack 582 / reach 378 mmIsaac Torus (2026)size L · stack 582 / reach 378 mmMassi Across Carbon (2026)size 54 · stack 582 / reach 378 mmPardus Uragano Sport (2026)size L · stack 582 / reach 378 mmRitte Satir (2026)size M · stack 582 / reach 378 mmSuperior GA (carbon) (2026)size L · stack 582 / reach 378 mm
Stack and reach within 12 mm of size XL (stack 600 / reach 386 mm).
Adris Aventure (2026)size XL · stack 600 / reach 386 mmIsaac Torus (2026)size XL · stack 600 / reach 386 mmMassi Across Carbon (2026)size 56 · stack 600 / reach 386 mmMosaic GT-2 i45 (2026)size 56 · stack 600 / reach 386 mmPardus Uragano Sport (2026)size XL · stack 600 / reach 386 mmSuperior GA (carbon) (2026)size XL · stack 600 / reach 386 mm
Spotted a mistake or a missing build? Let me know.