Cruiser · 2024

Harley-Davidson Sportster S ergonomics: seat height, rider triangle & fit

The Harley-Davidson Sportster S has a 30.1 in seat. Here’s how riders of different sizes fit, and what you can change.

Seat height: 30.1 in
Wet weight: 503 lb
Wheelbase: 59.8 in
Power: 89 kW

Specs: ManufacturerBars & pegs: EstimatedSeat width: Estimated

Try it with your measurements

Units

Your measurements

Height (in)

Inseam (in)

Arm length

Seated shoulder height

Boot sole

Preferred posture

Motorcycle

Modifications

Try common parts and see how they change your fit. The picture shows your setup over the stock bike.

Seat

Seat height0

Thicker or thinner seat. Lower makes it easier to reach the ground.

Lowering kit0

Lowers the whole bike. Easier to reach the ground, a little less legroom.

Handlebar

Bar risers0

Raises the bars. You sit more upright with less weight on your wrists.

Bar pullback0

Brings the bars closer to you. Shorter reach, good for shorter arms.

Footpegs

Lower pegs0

Lowers the footpegs. More knee room, less cramped legs.

Move pegs back0

Moves the pegs back (or forward). Further back feels sportier.

Windscreen

Windscreen height0

Taller or shorter screen. Changes how much wind hits your chest and helmet.

86Great fit

Specs: ManufacturerBars & pegs: Estimated

V-twin (60°) · 1252 cc · Hold W or Space to accelerate, ↑ / ↓ to change gear · Synthesised from the engine layout and firing order. Not a recording.

Original illustration, motorcycleergonomics.com

Fit score

86/100

Great fit

Knee 87°

Within range

Comfort 72–120°

Hip 82°

Tighter than comfortable

Comfort 85–130°

Elbow 149°

Within range

Comfort 125–176°

Back lean 10°

Within range

Comfort -12–10°

Ground reach

1.6 in to spare

Both feet flat, knees bent

Seat height with sag: 29.4 in
Leg length needed: 31.2 in
Your inseam + boots: 32.8 in

Wind

Full wind on chest and helmet

Suggested fixes

Handlebar risers +0.8 in

Fit score 86 → 90

Find parts ↗

Compare

Estimate. Handlebar and peg positions for this bike are estimated. Always sit on a bike before you buy it.

Fit by rider size

Shorter riders: at 5′4″ with a 29.5 in inseam, expect balls of both feet.
Taller riders: at 6′4″, knee angle is about 78°; fit score 84/100.

Rider	Inseam	Fit	Ground reach	Knee	Lean
5′1″	28.1 in	61	One foot flat, hips shifted	104°	16°
5′4″	29.5 in	76	Balls of both feet	97°	13°
5′7″	30.8 in	85	Both feet flat	91°	11°
5′10″	32.2 in	85	Both feet flat, knees bent	86°	10°
6′1″	33.5 in	85	Both feet flat, knees bent	82°	8°
6′4″	35 in	84	Both feet flat, knees bent	78°	7°

Reference riders with average proportions and 20 mm boot soles. Your proportions may differ.

Spec sheet

Drawn to scale from this bike's geometry.

Geometry & specifications

Geometry & specifications	Value	Source
Seat height	30.1 in	Manufacturer
Seat width at the front	11.8 in	Estimated
Handlebar grip	20.9 in ahead of the seat, 8.7 in above it	Estimated
Footpeg	16.5 in ahead of the seat, 12.6 in off the ground	Estimated
Wheelbase	59.8 in	Manufacturer
Wet weight	503 lb	Manufacturer
Rake	30°	Manufacturer
Trail	4.4 in	Manufacturer
Engine	V-twin (60°) · 1252 cc	Manufacturer
Power	89 kW	Manufacturer
Tyres	160/70-17 / 180/70-16	Manufacturer
Category	Cruiser	Manufacturer