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Dedicated Subsystem WorkbenchPlatform Gen: 2007–2016

2015 Harley Davidson Twin Cam 96 / 103 (Dyna / Softail / Touring) Suspension Hydraulics, Fork Fluids & Sag Tuner

Front fork travel, rear shock travel, spring preload, damping click baselines, and dynamic rider sag calculator for 2015 Harley Davidson Twin Cam 96 / 103 (Dyna / Softail / Touring).

Technical PassportOEM VERIFIED
Engine
1690cc
Cooling
Air/Oil-Cooled
Final Drive
Belt Drive
Engine Oil
3.80 L (4.00 US qt)
Spark Plug
HD 6R12 / Champion RA8HC / NGK DCPR7E
Front Tire
130/80B17 (Touring) / 100/90-19 (Dyna) / 130/90B16 (Softail)
Gen 2007–2016

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2007 through 2016.

SPECS-TO-CART BUNDLESFactory Direct-Fit Maintenance Bundles Available
1-Click verified Motul engine oil service kits, race filters, spark plugs, and brake fluid pre-measured for this 2015 Harley Davidson Twin Cam 96 / 103 (Dyna / Softail / Touring).
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Select Model Year:(Active: 2015)
10 Production Years (2007–2016)
Suggested Items4 Verified Workshop Consumables Available for this Job
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Suspension Hydraulics, Fork Fluids & Interactive Sag Tuner

Showa • KYB • WP Standards
OEM hydraulic capacities, air-gap measurement standards, clicker baselines, and mathematical rider sag tuning.
Shop Fork Seals & Wipers
Fork Architecture
Showa 41mm or 49mm Conventional Telescopic Damper Tube Forks
Oil Volume Per Leg
320 ml (10.8 oz)
OEM Fluid Specification
Type E Hydraulic Fork Oil (Approx 10W)
Air-Gap Spec (Oil Level)
135 mm (5.3 in) from top of tube compressed without spring
Fork Seal Dimensions
41 × 54 × 11 mm
Total Suspension Travel
Front: 117 mm • Rear: 76 mm
Target Rider Sag: 35 - 40 mm
Front Preload Baseline
Fixed OEM preload spacer
Rebound Damping Baseline
Fixed orifice hydraulic damping
Compression Damping Baseline
Fixed orifice hydraulic damping
Target Free Sag (Unladen)
25 - 30 mm
Enter 3-Point Sag Measurements (mm)
Suspension Sag Diagnosis & Geometry Status
Enter your extended, static, and rider measurements on the left (or select a preset) to compute exact sag percentages and spring preload recommendations.
Factory Fluid StandardDirect Spec
Spectro Heavy Duty Type E 20W Fork Oil
Formulated with anti-foam agents and shear-stable viscosity index improvers to prevent damping fade under aggressive riding heat.
Fork & Dust Seal KitExact Stanchion Fit
James Gasket 41mm/49mm Fork Seal Kit
Features directional triple-lip rubber seal profile and external garter springs engineered to withstand heavy stanchion flex without weeping.
Air-Gap Tuning PhysicsBottoming Control
135 mm (5.3 in) from top of tube compressed without spring
Trapped air column acts as a progressive spring in final 30% of stroke. Adding +5mm oil increases bottoming resistance without stiffening small bump compliance.
Recommended Maintenance Parts: Spectro Heavy Duty Type E 20W Fork Oil • James Gasket 41mm/49mm Fork Seal Kit

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)
U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).
Verify VIN on NHTSA.gov
No Active Federal Safety Recalls Reported
The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2015 Harley Davidson Twin Cam 96 / 103 (Dyna / Softail / Touring) platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.
OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

2 Documented Bulletins
Bulletin #M1524M1524: RECALL 0177 - 2019 - 2021 SPORTSTER - HEADLAMP BULB SHIELD
Source: Harley_M1524_Recall0177.pdf
Mandated Torques:Torque: 5.8–6 in-lbs (0.66–0.68 N·m) (Bulb Shield Screw)Torque: 35–44 in-lbs (4–5 N·m) (Bracket to Visor Screws)Torque: 10–16 ft-lbs (13.5–21.6 N·m) (Visor Bracket Screws)
Consumable Specs:Loctite 243 Medium Strength Blue Threadlocker (HD Part # 99642-97)
Genuine Part Numbers:68297-05A9150010799642-97
Fastener Stack ArchitectureExploded View: Headlamp Visor Fastener & Vibration Stack (Bulletin M1524)
3-Stage Torque Map
1. Triple Clamp Bolts (10–16 ft-lb)2. Cast Visor Eyebrow3. Visor Screws (35–44 in-lb)4. Matte Bulb Shield (91500107)5. Shield Screw: 5.8–6.0 in-lb (Loctite 243)6. H4 Quartz Bulb & SocketSelect any fastener or shield component to inspect exact torque specifications.
Component InspectorNHTSA Recall 0177 / M1524

Self-Tapping Shield Screw with Blue Loctite 243

Consumable: Loctite 243 (HD # 99642-97)
Factory Torque Specification
5.8–6.0 in-lbs (0.66–0.68 N·m) (CRITICAL LOW TORQUE)
Technical Assembly Note
MUST apply Loctite 243 Blue Threadlocker. Due to reuse of self-tapping screw into stamped bracket, STRICTLY do not exceed 6 in-lbs or threads will strip.
Vibration & Chemical Retention
Loctite 243 Medium Strength Blue Threadlocker (HD Part # 99642-97) mandatory on bulb shield screw to prevent thermal loosening.
Bulletin #Recall0171Part 573 Safety Recall Report 18V-076: ABS Hydraulic Control Unit Flush & Fluid Replacement
Source: Harley_Recall0171_ABS_4574.pdf
Mandated Torques:Torque: 17–22 ft-lbs (23.0–30.0 N·m) (ABS Manifold / Caliper Banjo Bolts)Torque: 35–61 in-lbs (4.0–6.9 N·m) (Brake Caliper Bleeder Screws)
Consumable Specs:Harley-Davidson Platinum Label DOT 4 Brake Fluid
Genuine Part Numbers:41731-01

Explore Other Subsystems for this 2015 Harley Davidson Twin Cam 96 / 103 (Dyna / Softail / Touring)

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Subsystem Guide/torques

Fastener Torques

Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.

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Subsystem Guide/fluids

Fluids & Capacities

Oil: 3.80 L (4.00 US qt) • Coolant: N/A • Brake: DOT 4 Glycol-Based High-Temp (Dry BP ≥ 260°C / Wet BP ≥ 165°C)

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Subsystem Guide/fuses-relays

Fuses & Relays

Main: 50A Maxi-Fuse • Location: N/A

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Subsystem Guide/compression

Compression & Leakdown

Ratio: 9.6:1 • Std: 165-185 PSI • Limit: 140 PSI

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Subsystem Guide/valves

Valve Clearances

Intake: N/A mm • Exhaust: N/A mm

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Subsystem Guide/fuel-delivery

Fuel Delivery & TB Sync

Idle: N/A • Rail Pressure: N/A • Vacuum: N/A

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Subsystem Guide/electrical

Charging & Battery

Battery: YTX20HL-BS (Dyna/Softail) / YIX30L-BS (Touring) • CCA: 385 • Regulated: 14.2 - 14.8 V DC at 3,000 RPM

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Subsystem Guide/tires

Tires & Gearing

Front: 130/80B17 (Touring) / 100/90-19 (Dyna) / 130/90B16 (Softail) • Rear: 180/65B16 (Touring) / 160/70B17 (Dyna) / 200/55R17 (Fat Boy)

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Subsystem Guide/maintenance

Maintenance Schedule

Oil: Every 5,000 mi (8,000 km) mi • Valves: N/A • Plugs: Every 10,000 mi (16,000 km) mi

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