The Harley-Davidson Softail Fat Boy motorcycle dimensions for 1998-2019 is length 93.3 in (2,370 mm) to 94.3 in (2,396 mm), wheelbase 64.5 in (1,638 mm) to 66.5 in (1,690 mm), seat height 25 in (635 mm) to 27.2 in (690 mm), and the ground clearance is 4.5 in (115 mm) to 5.1 in (130 mm).
Harley-Davidson Softail Fat Boy dimensions at a glance
Dimension charts
Position within similar Harley-Davidson models
Representative dimensions shown within the observed range for comparable Harley-Davidson models in the same category.
Compared with the category median
Percentile and median comparisons use the same comparable Harley-Davidson model group.
Specification differences by model year
Only dimensions that actually change between the supplied years are shown below. Unchanged specifications are omitted.
Overall length
Wheelbase
Seat height
Ground clearance
Useful dimension ratios
Seat height feel
About 26.1 in — a lower-than-typical seat height. This is a geometry comparison, not a guarantee of rider fit.
Wheelbase / length
70.3% of overall length. This shows how much of the bike’s total length is axle-to-axle distance rather than overhang.
Length beyond wheelbase
About 27.8 in (706 mm) combined beyond the axle-to-axle distance.
Clearance / wheelbase
7.7%. A simple ratio showing listed ground clearance relative to wheelbase.
How its dimensions compare
Compared with other Harley-Davidson models in the same Bikez category where enough usable data is available.
| Dimension | This model | Category median | Difference |
|---|---|---|---|
| Overall length | 94.3 in (2,395 mm) | 92.8 in (2,357 mm) | 1.5 in above median |
| Wheelbase | 65.6 in (1,665 mm) | 64.2 in (1,630 mm) | 1.4 in above median |
| Seat height | 26.1 in (662 mm) | 26.7 in (678 mm) | 0.6 in below median |
| Ground clearance | 5.1 in (130 mm) | 4.9 in (125 mm) | 0.2 in above median |
Harley-Davidson Softail Fat Boy dimensions FAQ
Is the Harley-Davidson Softail Fat Boy seat height low or tall?
The representative seat height is 26.1 in (662 mm), which is a lower-than-typical seat height. 0.6 in below the category median.
Does the Harley-Davidson Softail Fat Boy have a short or long wheelbase?
The representative wheelbase is 65.6 in (1,665 mm), giving the Harley-Davidson Softail Fat Boy a longer-than-typical wheelbase. 1.4 in above the category median. The wheelbase is about 70.3% of overall length.
How much ground clearance does the Harley-Davidson Softail Fat Boy have?
The representative ground clearance is 5.1 in (130 mm), which is higher-than-typical ground clearance. 0.2 in above the category median.
Is the Harley-Davidson Softail Fat Boy compact or large?
The representative overall length is 94.3 in (2,395 mm), making the Harley-Davidson Softail Fat Boy longer than most comparable Harley-Davidson models. 1.5 in above the category median.
Did the Harley-Davidson Softail Fat Boy dimensions change much by year?
The biggest supplied shift is in wheelbase: increased from 64.5 in (1,638 mm) in 2013-2015 to 66.5 in (1,690 mm) in 2016-2017, a change of 2 in. Check the year-by-year section above for the full breakdown.
What is the main dimension takeaway for the Harley-Davidson Softail Fat Boy?
The main listed figures are overall length 94.3 in (2,395 mm), wheelbase 65.6 in (1,665 mm), seat height 26.1 in (662 mm), and ground clearance 5.1 in (130 mm). Its clearance-to-wheelbase ratio is about 7.7%, which is a simple way to relate ground clearance to the bike’s axle spacing.