What is most important when building a custom motorcycle?

The key to building a custom motorcycle is to decide on how you will be using it (around town, cross-country trips, weekend camping, racing) and how you want it to look. Having a goal will make it easier to decide which parts you need for your build. Check our How to Build a Bobber article for more info on a custom build.

How to make my motorcycle faster?

Horsepower will make your motorcycle faster. This is often achieved by using a free-flowing air filter and exhaust system that is properly tuned. Other methods include increasing the engine displacement (with a big bore kit) and other engine modifications (custom camshafts, cylinder head work, etc).

What changes should I do to make my motorcycle more comfortable?

Setting up your motorcycle for riding comfort is time well spent. Pay particular attention to the style of seat, footpeg location and handlebars. Handlebar height (rise) and pullback (how far the handlebars come back toward the rider) are very important for comfort as well as handling of your motorcycle. A high quality seat is worth every penny on that long road trip!

Custom Motorcycle Parts

Sort by

Custom Motorcycle Parts CATEGORIES

Closeouts

Air Intake & Fuel Systems

Brakes

Drivetrain & Transmission

Electrical & Wiring

Engine

Exhaust

Fenders

Frame & Chassis

Gas tanks

Gauges & Instruments

Handlebars & Controls

License Plates

Lighting

Oil Tanks

Seats

Sissy Bars

Suspension

Tires & Tubes

Wheels & Wheel Components

BEST SELLING BRANDS

TOP Custom Motorcycle Parts

EMGO Universal Pod Air Cleaner Filter 48mm
11 reviews $16.86

Colony #3635-4 Kickstand Leg Stop Kit 1936-1984 Harley-Davidson Big Twins - Parkerized
$16.78

Cycle Standard Transmission Neutral Switch 2000-05 Harley-Davidson FXST FLST FLT 2000-04 FXD
$16.74

Colony #7816-1 Acorn Motor Sprocket Nut 1955-1976 Harley-Davidson Big Twin - Chrome Plated
1 review $16.73

Colony Axle / Wheel Spacer 1-3/8 x 1 x .475 Harley-Davidson #43654-00A — Colony #43654-00A Axle/Wheel Spacer 1-3/8 x 1 x .475
1 review $8.35

Colony #2530-6 Gas Tank Allen Mounting Kit 1985-1956 Harley-Davidson FXWG/FXST/FXSB/FXEF - Chrome Plated
1 review $16.70

Colony #2521-4 Front Chain Guard Inner Primary Cover Mounting Kit 1939-1973 Harley-Davidson 45s/Servi-car - Parkerized
$16.70

Colony #2757-6 Spotlight Fork Bracket Bolt Nut Kit 1938-1961 Harley-Davidson - Chrome Plated
$16.50

Colony #2546-1 Wire Clip Frame Head Tube 1950-1960 Harley-Davidson Big Twin - Parkerized
$16.50

Colony #2491-1 Battery Light Wire Clip 1930-1948 Harley-Davidson Big Twin - Parkerized
$16.50

Colony #2489-1 Frame Head Tube Wire Clip 1961-1984 Harley-Davidson Big Twin - Parkerized
$16.50

British Standard Petcock Straight Fuel Feed Pipes British Triumph BSA Norton OEM #82-3334
4 reviews $16.43

Colony Axle / Wheel Spacer 1-1/8 x 3/4 x.470 Harley-Davidson #43654-00 — Colony #43654-00 Axle/Wheel Spacer 1-1/8 x 3/4 x.470
$8.20

Colony #8766-10-P Handlebar Lever Mount/Master Cylinder Cover Smooth Allen Bolt Kit 1973-1981 Harley-Davidson Big Twin/XL - Chrome Plated
$16.38

Colony #9762-16 Oil Pump Mounting Kit Allen 1992-Up Harley-Davidson Big Twin - Chrome Plated
1 review $16.38

Colony #3533-3 Front Brake Cable Clip 1950-1971 Harley-Davidson FL/FLH - CAD Plated
2 reviews $16.34

Colony #2860-6 Grease Fitting Harley-Davidson OEM #9852 67-1/2 Degree - 6 Pack - CAD Plated
$16.34

Colony #2522-6 Rear Fender Rail Mounting Kit 1973-1985 Harley-Davidson FX - Chrome Plated
$16.01

Colony #3399-15 Primary Cover Allen Screw Kit 1991-1993 Harley-Davidson Sportster - CAD Plated
2 reviews $15.97

Standard Motorcycle Products Points & Condenser Kit 1966-1969 Harley-Davidson Shovelhead 1957-1970 XL
$15.95

Colony #7615-4 Early Style Battery Terminal Screw Kit Fits All 6 volt Harley-Davidson Pre-1965
$16.34

Colony #8801-2 Transmission Fill Plug 1940-1984 Harley-Davidson Big Twin 4 Speed - Chrome Plated
1 review $15.94

Colony #7814-2 Rear Chain Adjusters - 1930-1952 Harley-Davidson Flathead 45's - Chrome Plated
1 review $15.94

Dill Air Controls Rubber Valve Stem - Pull-in TR-413 - Black
$3.95

Dill Air Controls Rubber Valve Stem - Pull-in TR-412 - Black
$3.95

Colony #2504-1 Horn Wire Clip 1938-1948 Harley-Davidson Big Twin 1940-1957 45's/Servi-car - Parkerized
1 review $7.87

Colony #3037-8 Oil Tank Mounting Kit 1936-1957 Harley-Davidson Big Twins - Parkerized
$15.73

Colony #2948-3 Circuit Breaker Mounting Clamp & Stud Kit 1966-1969 Harley-Davidson FL/FLH - CAD Plated
1 review $15.73

Colony #2575-1 Clutch Cable Adjusting Sleeve 1957-1971 Harley-Davidson XL 1953-1956 K Model - Chrome Plated
$15.73

Colony #3334-1 Fuel Strainer Hose Nipple 1932-1938 Harley-Davidson Twins - CAD Plated
1 review $7.87

Colony #8211-2 Sprocket Shaft Seal Assembly 1939-1973 Harley-Davidson 45's
3 reviews $3.89

Colony #9736-1 Gear Box Adjusting Screw 1936-1964 Harley-Davidson Big Twin - CAD Plated
$15.52

Colony #9693-1 Gear Box Adjusting Screw 1929-Up Harley-Davidson 45's - Parkerized
$15.52

Colony #8891-20 Primary Cover Screw Kit 1957-1969 Harley-Davidson XLCH - CAD Plated
$15.52

Colony #8727-8 Lifter Base Allen Screw Kit Pre-1976 Harley-Davidson Case To Late Lifter Bases - Chrome Plated
$15.52

Colony #9964-2 Fork Tube Bolt Washers 1978-Up Harley-Davidson FL/FXWG/Softail - Chrome Plated
2 reviews $5.18

Colony #3402-6 Sprocket Cover & Rear Master Cylinder Mounting Kit 1986-2003 Harley-Davidson XL - CAD Plated
2 reviews $7.73

Colony #2587-1 Timer Cable Clamp 1936-1948 Harley-Davidson Big Twins - CAD Plated
1 review $7.70

Colony #2771-4 Kick Starter Pedal Mounting Kit 1917-Up Harley-Davidson Davidson - Chrome Plated
2 reviews $15.40

Colony #7101-1 Motor Sprocket Nut 11/16-18 Thread - 1930-1954 Harley-Davidson Big Twins
$15.40

Colony #2058-1 Fork Stem Cap 1980-Up Harley-Davidson FXST/FXWG - Chrome Plated
$15.27

Colony #9953-10 Point Cover Mounting Acorn Nut Kit 199-Up Harley-Davidson Twin Cam Dyna/FLT 2000-Up Softail - Chrome Plated
$15.14

Colony #3343-2 Carburetor Bowl Drain Plug 1939-1965 Linkert
$7.57

Colony #9607-2 Oil Pump Relief Valve Plug 1968-1980 Harley-Davidson Big Twin - Chrome Plated
$15.14

Colony #9605-2 Oil Pump Relief Valve Plug 1954-1967 Harley-Davidson Big Twin - Chrome Plated
3 reviews $15.14

Colony #7609-6 Rocker Stud Lock Kit 1930-1948 Harley-Davidson Big Twin Springers
$15.14

Colony #9107-8 Rear Brake Caliper Anchor Arm Bolt Kit 1973-1983 Harley-Davidson FL/FX - CAD Plated
1 review $15.13

Colony Axle / Wheel Spacer 1.740 x 25mm x .989 Harley-Davidson #11848 — Colony #11848 Axle/Wheel Spacer 1.745 x 25mm x .260
2 reviews $7.45

Colony Axle / Wheel Spacer 1.470 x 25mm x 2.090 Harley-Davidson #40947-08 — Colony #40947-08 Axle/Wheel Spacer 1.470 x 25mm x 2.090
2 reviews $14.89

Colony #2133-4 Handlebar Riser Allen Bolt Kit 1/2-20 x 2-3/4" - Chrome Plated
1 review $14.89

Colony #2081-3 Rear Brake Caliper Mounting Allen Bolts 2000-2007 Harley-Davidson FX/FL/XL - Chrome Plated
1 review $14.89

Colony #9851-5 Primary Cover Screw Kit 1957-1966 Harley-Davidson XL/XLH - CAD Plated
$14.89

Colony #9214-2 Handlebar End Nuts 1954-1972 Harley-Davidson K/XL 1954-1974 FL OEM #56288-53 - Black
$14.89

Colony #8783-8 Cam Cover Allen Screw Kit 1971-1985 Harley-Davidson Sportster - Chrome Plated
1 review $14.89

Colony #8145-10 Circuit Breaker & Voltage Regulator Screws 1936-1964 Harley-Davidson OHV Twins - Chrome Plated
1 review $14.89

Colony #2366-6 Rear Axle Nut and Lock Kit - 1932-1973 Servi-Car - Parkerized
1 review $14.89

Colony #2562-2 Panel Switch Knob and Screw Kit 1939-E1943 Harley-Davidson Big Twins & 45s - Chrome Plated
$14.85

Colony #9808-6 Oil Nipple Cap 1915-1964 Harley-Davidson All Models - CAD Plated
1 review $14.85

Colony #2438-5 Gas Tank Pike Nut Mounting Kit 2000-Up Harley-Davidson Softail - Chrome Plated
1 review $14.83

Cycle Standard 1/8 inch Hose Barb 90 Elbow x 1/8 inch NPT - Chrome
$7.41

Colony #9886-12 Floorboard Hinge Bolt Kit 1914-1940 Harley-Davidson All Models - Parkerized
2 reviews $14.74

Colony #8929-8 Linkert Carb Mounting Screws Harley-Davidson OEM #47248-48 - Chrome Plated
$14.74

Colony #8163-3 Front Axle Nut Kit 1946-1971 Harley-Davidson Big Twins - CAD Plated
$14.74

Colony #8112-20 Transmission Side & Clutch Arm Nut Kit Harley-Davidson Big Twin 4 Speeds To 1984 - Chrome Plated
3 reviews $14.74

British Standard OIF Fork Seals Triumph T140 TR7 Bonneville Tiger BSA A65
1 review $14.60

Colony #3560-2 Lower Front Tie Rod Set Screws 1920-1984 Harley-Davidson Sidecars
$7.26

Colony #3300-12 Valve Cover Seal Kit 1930-1936 Harley-Davidson VL 1937-1938 Sidevalves
$14.52

Colony #3069-3 Oil Tank Vent Pipe Nipple Kit 1937-1973 Harley-Davidson 45s/Servi-car - CAD Plated
1 review $7.26

Colony #2852-6 Upper Engine Mounting Kit 1984-1999 Harley-Davidson Softail - Chrome Plated
1 review $14.52

Colony #2746-2 Clutch Hub Nut Kit 1967-1984 Harley-Davidson Sportster
$14.52

Drag Specialties 35mm Lower Fork Slider Bushing 1984-1987 Harley-Davidson FX/FXE/FXR 84-87 XL OEM# 45416-84
$14.93

Drag Specialties 35mm Upper Fork Slider Bushing 1984-1987 Harley-Davidson FX/FXE/FXR 84-87 XL OEM# 45413-84
$14.93

Looking to enhance your motorcycle's aesthetics or boost its performance? At Lowbrow Customs, we've got you covered no matter your riding style. Whether you're mending a part or improving your motorbike's current configuration, our online store offers hundreds of universal or bespoke custom motorcycle parts and accessories that can revitalize your Harley, BSA, or Triumph.

WHAT MAKES CUSTOM MOTORCYCLE PARTS BETTER THAN COMPANY-MADE?

Motorcycles equipped with custom parts, such as Harley Davidson aftermarket components, can present distinct advantages over standard company-made parts. These specialized aftermarket options are tailored specifically for Harley, BSA, or Classic Triumph motorcycles, offering a suite of benefits that many riders find attractive.

Custom parts are often designed to enhance the performance of a motorcycle.
Riders can choose parts made from premium materials such as carbon fiber, titanium, or high-grade alloys, which can be lighter, stronger, or more aesthetically appealing than stock components.
Universal custom motorcycle parts often allow riders to personalize the appearance of their motorcycles, creating a distinctive look that reflects their individual style and preferences.
Depending on the brand and specific component, aftermarket motorcycle parts can sometimes be more cost-effective while still providing comparable or superior performance and quality.
Finding specific OEM parts for BSA, Harley Davidson Big Twin motorcycles or Vintage Triumph can sometimes be challenging, especially for older or less common models.

At Lowbrow Customs, our experienced team of motorcycle builders ensures you find the perfect custom part for a smooth ride and a unique look. With a comprehensive catalog of quality brands like Colony, Cycle Standard, British Standard and Biltwell, clear fitment data, and helpful reviews, we're your go-to online source for motorcycle parts.

Benefit from our hassle-free 90-day return policy and exceptional customer service, available via chat, phone, or email, to make your shopping experience unparalleled. Enjoy the ride with confidence!

Read less

Custom Motorcycle Parts FAQ

STAY CONNECTED
WITH LOWBROW

NO SPAM, EVER. JUST GREAT STUFF. YOUR INFO IS NEVER SHARED.