BMW R 18 Roctane
2025 | bagger
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Visual reference
Side profile
- Seat height
- 719 mm
- Wheelbase
- 1,720 mm
- Wet weight
- 374 kg
- Category
- bagger
Listing links may earn Rider Height a commission.
- Asset
- Pending
- Dimensions
- -
- License
- -
- Source
- -
Data provenance
Where these numbers came from
Every populated geometry field records its source, verification state, and source link when available. These records feed both the simulator and the fit recommendation engine.
- Geometry status
- Provisional
- Field records
- 19
- Verified fields
- 0/19
- Linked sources
- 19/19
| Field | Value | Source | Status | Notes |
|---|---|---|---|---|
| WheelbaseChassis | 1,720 mm | Published manufacturer/manual spec | Provisional | Manually entered from published specs for the live fallback catalog; not independently verified. |
| Ground clearanceChassis | 120 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Seat contact XRider triangle | 740 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Seat contact heightRider triangle | 719 mm | Published manufacturer/manual spec | Provisional | Manually entered from published specs for the live fallback catalog; not independently verified. |
| Seat lengthRider triangle | 295 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Handlebar XRider triangle | 1,118 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Handlebar heightRider triangle | 959 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Handlebar widthControls | 900 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Foot peg XRider triangle | 1,307 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Foot peg heightRider triangle | 379 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Passenger seat XPassenger | 585 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Passenger seat heightPassenger | 804 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Passenger peg XPassenger | 826 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Passenger peg heightPassenger | 614 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Seat height minimumAdjustability | 719 mm | Published manufacturer/manual spec | Provisional | Manually entered from published specs for the live fallback catalog; not independently verified. |
| Seat height maximumAdjustability | 719 mm | Published manufacturer/manual spec | Provisional | Manually entered from published specs for the live fallback catalog; not independently verified. |
| Wet weightPhysical | 374 kg | Published manufacturer/manual spec | Provisional | Manually entered from published specs for the live fallback catalog; not independently verified. |
| Front wheel diameterRendering | 701 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
| Rear wheel diameterRendering | 655 mm | Category-based provisional contact geometry | Provisional | Rider contact point estimated from category proportions until side-profile landmarks are authored. |
Bike-level reference: https://www.bmwmotorcycles.com/en/models/heritage/r18-roctane/technicaldata.html
Does the BMW R 18 Roctane fit you?
The BMW R 18 Roctane (2025) has a 719 mm seat height. As a rule of thumb, riders with an inseam around 72 cm — roughly 153 cm (5'0") tall — can plant both feet flat at a stop. Around 66 cm inseam you'll be on the balls of your feet, and shorter riders will tiptoe. Enter your own height and inseam in the simulator above to see exactly how you reach the ground on the BMW R 18 Roctane.
Riding position
As a bagger motorcycle, the BMW R 18 Roctane puts you in a relaxed, feet-forward stance. The simulator scores the exact knee, hip, and elbow angles for your body so you can see how relaxed or aggressive the reach to the bars and pegs will feel.
What is the BMW R 18 Roctane best for?
The BMW R 18 Roctane is best suited to long-haul highway cruising with luggage and a low, planted seat.
Braking & stopping distance
At 374 kg wet plus a rider, a hard stop from 100 km/h on dry tarmac takes roughly 39 m (about 1.00 g). Stopping distance is grip-limited, so it is set far more by tyres and road surface than by the bike or rider weight.
Fit figures are rules of thumb (flat-foot inseam ≈ seat height); the simulator gives your exact reach and joint angles. Braking is an estimate from wet weight and wheelbase on a dry road.
Community corrections
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