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

Colony Axle / Wheel Spacer 1-1/2 x 1 x 2.098 Harley-Davidson #40947-06 — Colony #40947-06 Axle/Wheel Spacer 1-1/2 x 1 x 2.098
$14.89

Colony Axle / Wheel Spacer 1-1/2 x 1 x .718 Harley-Davidson #40940-06 — Colony #40940-06 Axle/Wheel Spacer 1-1/2 x 1 x .718
$11.17

Colony Axle / Wheel Spacer 1-1/2 x 1 x .815 Harley-Davidson #40936-06 — Colony #40936-06 Axle/Wheel Spacer 1-1/2 x 1 x .815
1 review $11.17

Colony Axle / Wheel Spacer 1-1/2 x 1 x 1.480 Harley-Davidson #40930-05 — Colony #40930-05 Axle/Wheel Spacer 1-1/2 x 1 x 1.480
1 review $12.67

Colony Axle / Wheel Spacer 1-1/4 x 3/4 x 1.478 Harley-Davidson #40930-04 — Colony #40930-04 Axle/Wheel Spacer 1-1/4 x 3/4 x 1.478
$20.31

Colony Axle / Wheel Spacer 1.470 x 25mm x .883 Harley-Davidson #40927-08 — Colony #40927-08 Axle/Wheel Spacer 1.470 x 25mm x .883
$10.44

Colony Axle / Wheel Spacer 1-1/2 x 1 x .803 Harley-Davidson #40927-06 — Colony #40927-06 Axle/Wheel Spacer 1-1/2 x 1 x .803
$11.17

Colony Axle / Wheel Spacer 1.470 OD x 25mm ID x 1.150 Harley-Davidson #40926-08 — Colony #40926-08 Axle/Wheel Spacer 1.470 OD x 25mm ID x 1.150
$11.17

Colony Axle / Wheel Spacer 1-1/2 x 1 x 1.025 Harley-Davidson #40926-06 — Colony #40926-06 Axle/Wheel Spacer 1-1/2 x 1 x 1.025
2 reviews $11.90

Colony Axle / Wheel Spacer 1-1/2 x 1 x .630 Harley-Davidson #40437-01 — Colony #40437-01 Axle/Wheel Spacer 1-1/2 x 1 x .630
$10.42

Colony Axle / Wheel Spacer 1-1/2 x 1 x .132 Harley-Davidson #11844 — Colony #11844 Axle/Wheel Spacer 1-1/2 x 1 x .132
2 reviews $7.45

Colony Axle / Wheel Spacer 1-1/2 x 1 x .985 Harley-Davidson #11804 — Colony #11804 Axle/Wheel Spacer 1-1/2 x 1 x .985
1 review $11.90

Cycle Standard Prime 1 inch Handlebar Switch Kit - Dual Mini Switch - Chrome
6 reviews $104.74

Cycle Standard Prime 1 inch Handlebar Switch Kit - Single Mini Switch - Black
8 reviews $87.28

Kustom Tech Grimeca 1 inch Clutch Lever - Polished Aluminum
$233.26

Kustom Tech Grimeca Master Cylinder - Polished Aluminum - 1 inch Handlebars - 14mm piston
2 reviews $388.65

Gasbox Exhaust Port Clamps 1952-1971 Harley-Davidson K and Sportster XL Models - Stainless Steel OEM #65519-52
1 review $20.00

Gasbox Rear Muffler Exhaust Clamp 1957-1976 Harley-Davidson FX and Sportster XL Models - Stainless Steel OEM #65279-57
1 review $19.95

Gasbox Rocket Tip Muffler 1941-1949 Harley-Davidson Knuckleheads and 74 and 80 ci Flathead Models - Bare Steel OEM #65251-41
1 review $150.00

Gasbox XLR Drag Pipe Set fits 1957 - 1980 (except 1979) Harley-Davidson Sportster XL XLH XLCH XLR ModelsLR Models - Chrome OEM #65487-59
5 reviews $249.99

Gasbox XLR Drag Pipe Set fits 1957 - 1980 (except 1979) Harley-Davidson Sportster XL XLH XLCH XLR Models - Bare Steel OEM #65487-59
9 reviews $199.99

Gasbox Panhead Exhaust Pipe Set 1958-1964 Harley-Davidson Swingarm FL FLH 74 ci - Bare Steel
1 review $239.95

Colony #3224-3 Brake Switch Clip Kit 1966 - 1947 Harley-Davidson Sportster XLH XLCH — Colony #3224-3 Brake Switch Clip Kit 1966-1974 Harley-Davidson Sportster XLH/XLCH - Parkerized
3 reviews $20.89

Colony #3215-4 Throttle Cable Bracket 1949 - 1953 Harley-Davidson Big Twins — Colony #3215-4 Throttle Cable Bracket 1949-1953 Harley-Davidson Big Twins - Parkerized
$20.57

Colony #3202-4 Switch Box Fastening Bolt Kit 1929 - 1936 Harley-Davidsons — Colony #3202-4 Switch Box Fastening Bolt Kit 1929-1936 Harley-Davidsons - Parkerized
$11.99

Colony #3214-4 Generator Pole Screw Kit 1951 - 1957 Harley-Davidson Twins — Colony #3214-4 Generator Pole Screw Kit 1951-1957 Harley-Davidson All Twins - Parkerized
$6.96

Colony #3218-1 Steering Damper Knob 1952 - 1966 Harley-Davidson K KH FL FLH Sportster — Colony #3218-1 Steering Damper Knob 1952-1966 Harley-Davidson K/KH/XL 1960-1984 FL/FLH 1960-Up Servi-car
$49.50

Colony #3219-5 Carburetor Support Bracket 1941 - 1947 Harley-Davidson OHV Big Twin — Colony #3219-5 Steering Damper Anchor Plate Kit 1952-1963 Harley-Davidson K/KH/XL - CAD Plated
$28.60

Colony #3187-10 Valve Spring Cover Kit 1926 - 1934 Harley-Davidson Singles — Colony #3187-10 Valve Spring Cover Kit 1926-1934 Harley-Davidson Singles - Nickel Plated
1 review $60.50

Colony #3115-3 Headlamp Mounting Kit 1935 - 1948 Harley-Davidson Big Twins and 45's — Colony #3115-3 Headlamp Mounting Kit 1935-1948 Harley-Davidson Big Twins/45's - CAD Plated
$6.05

Colony #2918-3 Rear Brake Spring and Brake Lock Pull 1937 - 1940 Harley-Davidson — Colony #2918-3 Rear Brake Spring & Brake Lock Pull 1937-1940 Harley-Davidson - Parkerized
$32.45

Bates Baja 90 Tire 16" - 130/90B16 73R
35 reviews $248.71

S&S Cycle Hooligan Kit - 883cc to 1200cc for 2000 - 2021 Harley-Davidson Sportster Models - Wrinkle Black
4 reviews $1,640.66 $1,822.95

S&S Cycle S&S 1200cc Hooligan Kit for 2000 - 2021 Harley-Davidson Sportsters - Silver
1 review $1,568.66 $1,742.95

V-Twin Manufacturing Complete 21 inch Spool Hub Chopper Wheel - 3/4 inch Bearings
10 reviews $258.05 $280.49

PanAm Oils Inc. Oil Pressure Gauge 0-60 psi - Black
9 reviews $37.15

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Brass
10 reviews $83.23

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Aluminum
2 reviews $48.55

Kustom Tech 7/8 inch Clamp with Micro Switch - Black
$112.85

Kustom Tech 7/8 inch Clamp with Micro Switch - Polished
$102.33

Colony #3200-5 Seat Post Retaining Plate Kit 1952-66 Harley Davidson K XL — Colony #3200-5 Seat Post Retaining Plate Kit 1952-1966 Harley-Davidson K/XL - Parkerized
$37.95

Colony #3188-4 CAD Plated Headlamp Housing Mounting Kit 60-78 Harley Davidson FL FLH — Colony #3188-4 Headlamp Housing Mounting Kit 1960-1978 Harley-Davidson FL/FLH - CAD Plated
$12.10

Colony #3064-2 Parkerized Fender Brace Bolt Kit 1941-57 Harley Davidson Big Twin and 45 — Colony #3064-2 Fender Brace Bolt Kit 1941-1957 Harley-Davidson Big Twin/45's - Parkerized
$5.45

Colony #3205-2 CAD Plated Fender Brace Bolt Kit 1941-57 Harley Davidson Big Twin and 45 — Colony #3205-2 Fender Brace Bolt Kit 1941-1957 Harley-Davidson Big Twin/45's - CAD Plated
$5.45

Colony #3198-1 Parkerized Brake Operating Lever 36-57 Harley Davidson Big Twin — Colony #3198-1 Brake Operating Lever 1936-1957 Harley-Davidson Big Twins - Parkerized
$38.50

Colony #3192-16 Parkerized Rear Brake Drum Bolt Kit Harley Davidson K KH XL 52-65 — Colony #3192-16 Rear Brake Drum Bolt Kit 1952-1965 Harley-Davidson K/KH/XL - Parkerized
$23.00

Cycle Standard Narrow Alien Motorcycle Gas Tank - 2.1 gallon
9 reviews $205.99

Drag Specialties Diamond Pattern Gas Tank 2004 - 2006 Sportster XL Models
5 reviews $328.52

Drag Specialties Diamond Pattern Gas Tank 2007-2022 EFI Harley-Davidson Sportster XL Models
1 review $317.19

EMGO Triumph Lucas Type Horn and HI / LO Handlebar Light Switch
10 reviews $31.09

British Standard Throttle Cable 42" 1968-72 Triumph Bonneville T120R 1973-75 T140V Made in UK OEM #60-1819
2 reviews $34.58

Colony #3185-4 Battery Wing Nuts Parkerized 1/4-20 — Colony #3185-4 Battery Wing Nuts 1/4-20 Harley-Davidson OEM #4409-24 - Parkerized
$4.84

Colony #3183-4 Battery Wing Nuts CAD 5/16-18 — Colony #3183-4 Battery Wing Nuts 5/16-18 Harley-Davidson OEM #554A - Parkerized
$7.26

Colony #3182-5 Jiffy Stand Clevis Pin Clip Chrome Plated Harley Davidson — Colony #3182-5 Jiffy Stand Clevis Pin Clip 1989-Up Harley-Davidson XL 1991-Up Dyna 2002-Up VRSC 2007-Up Softail - Chrome Plated
$12.10

Colony #3181-5 Jiffy Stand Clevis Pin Clip Zinc Plated Harley Davidson — Colony #3181-5 Jiffy Stand Clevis Pin Clip 1989-Up Harley-Davidson XL 1991-Up Dyna 2002-Up VRSC 2007-Up Softail - Zinc Plated
1 review $11.00

Colony #3175-6 Fork Panel Mounting Kit 49-70 Harley Davidson Big Twins XL — Colony #3175-6 Fork Panel Mounting Kit 1949-1970 Harley-Davidson Big Twin/XL - CAD Plated
1 review $17.42

Colony #3172-1 Ignition Switch Contact Roller Harley Davidson 1936-1984 Big Twins — Colony #3172-1 Ignition Switch Contact Roller 1936-1984 Harley-Davidson Big Twins
$8.47

Colony #3169-1 Chain Oiler Hose Clamp 1978-82 Harley Davidson FL — Colony #3169-1 Chain Oiler Hose Clamp L1978-1982 Harley-Davidson FL/FLH - Zinc Plated
$7.87

Colony #3168-16 Footboard Mounting Kit 1965-69 Harley Davidson Big Twins — Colony #3168-16 Footboard Mounting Kit 1965-1969 Harley-Davidson Big Twins - Parkerized
1 review $54.45

Colony #3161-4 Air Cleaner Mount Kit 1984-85 Harley Davidson FL FX — Colony #3161-4 Air Cleaner Mount Kit 1984-1985 Harley-Davidson FL/FX/XL - Zinc Plated
$15.95

Colony #3157-11 Buddy Seat Auxillary Spring Bolt Kit 1936-69 Harley Davidson — Colony #3157-11 Buddy Seat Auxillary Spring Bolt Kit 1936-1969 Harley-Davidson Big Twins - Parkerized
2 reviews $20.57

Colony #3152-1 Motor Sprocket Nut 1957-69 Harley Davidson Sportster XLCH — Colony #3152-1 Motor Sprocket Nut 1957-1969 Harley-Davidson Sportster XLCH - Parkerized
$9.68

Colony #3147-2 Air Horn Cover Mount Screws 1936 Harley-Davidson Knucklehead - CAD Plated
$7.26

Colony #3143-2 Top Plugs For Classic Springer Forks - Brass — Colony #3143-2 Brass Top Plugs For Classic Harley-Davidson Springer Forks
1 review $22.00

Drag Specialties Replacement Shocks - 13 inch - 2004 - 2017 Harley-Davidson Sportster XL - Black
7 reviews $278.95

Drag Specialties Premium Shocks - 13 inch - 2004 - 2022 Harley-Davidson Sportster XL - Black
2 reviews $425.95

Morris Magneto X5 Magneto for Generator Model Harley Davidson Ironhead Sportsters and 45 Flat Heads
$2,221.77

Morris Magneto T5 Twin Cam Magneto for Harley Davidson - Brushed Finish
$2,453.41

Morris Magneto 74LDMD Dual Magneto Setup for Alternator Big Twin Harley Davidsons - Brushed Finish
$3,101.96

Morris Magneto MM74L Magneto for Alternator Big Twin Harley Davidsons with Aftermarket Cases - Brushed Finish
$1,942.38

Morris Magneto MM74L Magneto for Alternator Big Twin Harley Davidsons 1993 - 1999 - Brushed Finish
$1,942.38

Morris Magneto MM74L Magneto for Alternator Big Twin Harley Davidsons 1974 - 1992 - Brushed Finish
2 reviews $1,942.38

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.