Wider platformFoot controls
IMS Pro-4 Footpegs
Cast 17-4 stainless-steel pegs with an approximately 2-by-3-inch platform and taller outer-edge teeth for added boot support.
- Springs are included
- Confirm exact CRF100F year before ordering
2004–2013 Honda 19/16 Trail Bike
Honda CRF100F Rider Guide
Stock specifications, used-bike setup, maintenance guidance and carefully selected CRF100F parts—with clear notes where XR100 and XR100R applications overlap.
All Honda CRF Rider GuidesKnow Your Bike
A taller manual-clutch trail bike with decades of XR100 DNA.
The CRF100F combines a 99cc air-cooled four-stroke, 22mm piston-valve carburetor, kickstarter and five-speed transmission with a hand-operated clutch. Its 19-inch front and 16-inch rear wheels create a taller platform than the smaller CRF minis, making rider fit and confident control especially important.
Every CRF100F is now an older used motorcycle. Previous owners may have changed the engine, carburetor, gearing, wheels, suspension, controls or bodywork. Identify the year and installed configuration before choosing parts, and repair starting, clutch, chassis or braking problems before adding performance.
XR100, XR100R and CRF100F are one lineage—not one universal fitment
Honda used the CRF100F name for the 2004–2013 U.S. model after the XR100R. Many aftermarket listings span multiple generations because substantial hardware overlaps. That does not prove every engine, electrical, chassis, body or control part fits every year. Use the VIN/model label and each product's exact application—not plastics, graphics or a seller's shorthand.
Start Here
Three smart first priorities
Restore a dependable baseline, then build around the rider and the way the motorcycle will actually be used.
-
01
Identify the motorcycle
Confirm the frame label, VIN, year, XR/CRF generation, engine, carburetor, ignition, wheel sizes, gearing and previous modifications.
Review Model Guidance -
02
Establish a service baseline
Check cold starting, fuel, carburetor, air cleaner, oil, valves, clutch, chain, tires, bearings, brakes and controls.
Review Maintenance -
03
Match the chassis to the rider
Confirm ground reach, cockpit space, lever reach, hand strength and confident coordination of clutch, throttle, shifting and braking.
Compare Rider-Fit Priorities
Used-bike rule: Performance parts cannot correct a dragging clutch, dirty carburetor, worn chain, loose bearings or weak brakes. Repair the underlying problem first.
Quick Reference
Honda CRF100F stock specs
Use these as stock-reference values for the U.S. CRF100F. Previous-owner modifications are common, so read the installed tire sizes, count both sprockets and follow the year-correct Honda manual whenever a procedure, capacity or torque value matters.
- Front tire
- 70/100-19
- Tube-type; earlier Honda notation is 2.50-19
- Rear tire
- 90/100-16
- Tube-type; earlier Honda notation is 3.00-16
- Front sprocket
- 14 tooth
- Stock reference; count what is installed
- Rear sprocket
- 50 tooth
- Stock reference; count what is installed
- Drive chain
- #428
- Confirm required length around the installed gearing
- Spark plug
- NGK CR7HSA
- DENSO U22FSR-U; gap 0.60–0.70 mm
- Engine
- 99cc
- Air-cooled single-cylinder four-stroke
- Carburetor
- 22mm
- Piston-valve carburetor; not fuel injected
- Transmission
- 5-speed
- Wet multi-plate manual clutch
- Engine oil
- 1.0 US qt
- After draining; Honda reference specifies 10W-30
- Valve clearance
- 0.002 in
- Intake and exhaust; check cold
- Starting / brakes
- Kick / drum
- Kickstarter; front and rear drums
Honda reference: Cold tire pressure is 15 psi front and rear. Seat height is 30.9 inches, wheelbase is 49.2 inches and fuel capacity is approximately 1.3 gallons. Honda lists the 2013 bike at 170 lb ready to ride and a 220-lb maximum total load, including rider and accessories, for one operator only. Confirm the exact-year label/manual, and size a replacement chain around the installed 14/50 gearing.
Find the exact-year Honda owner's manualChoose Your Goal
CRF100F parts and upgrade guide
These are curated starting points, not a list of parts every CRF100F needs. Choose the problem being solved, then confirm the exact model year and installed configuration on the product page.
Protection, Controls & Chassis
Protect the bike and make every rider contact point predictable
Restore worn or bent controls first. Then improve boot support, shift position and hand protection around the rider without compromising steering, cable movement or throttle return.
Model-specific replacementShift lever
Hammerhead Forged Shift Lever
A forged 6061-aluminum lever arm with a CNC-machined aluminum tip and stainless-steel return spring for 2004–2013 CRF100F applications.
- Useful when the stock lever is bent or worn
- Verify shift travel and case clearance after installation
OE-style replacementThrottle
Motion Pro Throttle Tube
A one-piece nylon-composite throttle sleeve with molded grip ridges and a pop-out end for compatible bar-end handguard setups.
- Useful when the original tube is cracked or dragging
- Verify smooth return at full left and right steering lock
Mini-bike protectionHands
Acerbis Firstmoto Handguards
A mini off-road handguard with an aluminum bar overmolded in plastic and an included mounting kit.
- Current application listing covers CRF100F 2004–2012
- Confirm bar fit, steering, cables and throttle return
Control check: Any lever, peg, shifter, grip, throttle-tube or handlebar change must preserve full steering, smooth cable movement, reliable throttle return and complete brake and clutch operation.
Suspension & Rider Fit
Service chassis wear before deciding the suspension is too soft
Fork wear, notched steering bearings, rear-suspension play or an incorrect rider-bike match can all feel like a spring problem. Inspect the complete chassis before selecting additional support.
Fork clunks or binds?Inspect wear and alignment first.
Rear end moves sideways?Check wheel, swingarm and linkage play.
Controls feel difficult?Set lever, cable and bar condition first.
Rider no longer fits?Consider a larger motorcycle.
Additional supportFork springs
BBR Heavy Duty Fork Springs
BBR replacement fork springs developed for harder-ridden mini four-strokes and described as approximately 30% stiffer than stock on most applications.
- Service worn fork components before changing spring rate
- Match front and rear support to the rider and use
Steering refreshBearings & seals
All Balls Steering Stem Bearing Kit
An upper-and-lower bearing and seal kit for a front end that feels notched, loose or due for teardown and inspection.
- Diagnose adjustment, wear and damage before ordering
- Install and torque with the year-correct service procedure
Rear endInspect & match
Choose spring support only after checking the chassis
Inspect the shock, swingarm, pivot points and wheel bearings, then choose any front-and-rear spring changes around rider weight, pace and terrain.
- Honda lists a 220-lb total-load limit
- Aftermarket parts do not raise that rating
Engine, Carburetion & Clutch
Treat added power as one system—not a pile of unrelated parts
On an older carbureted motorcycle, poor response may come from stale fuel, blocked passages, intake leaks, valve clearance or low compression. Establish engine and clutch condition first, then coordinate airflow, carburetion, exhaust and internal engine work.
Serviceable airflowAir filter
Twin Air Dual Stage Filter
A washable foam filter that uses fused outer and inner layers to trap dirt while maintaining airflow.
- Oil and install it with a complete airbox seal
- Service more often in wet or dusty riding
Fuel-system refreshCarburetor
All Balls Carburetor Rebuild Kit
An application-specific kit with gaskets, O-rings, float needle components, mixture-screw parts and jetting pieces based on U.S.-model carburetors.
- Identify the installed carburetor before disassembly
- Select final jetting for the complete engine setup
Complete systemExhaust
Yoshimura TRS Header/Canister
A complete 2004–2013 CRF100F exhaust with Yoshimura's tri-oval canister, straight-core baffle and removable low-volume insert.
- Sound and carburetor tuning remain part of the build
- Confirm current land-use sound requirements
Top-end projectPiston & gaskets
Wiseco Pro-Lite Top End Kit
A forged-piston top-end kit packaged with the matching gasket kit for a planned 2004–2013 CRF100F rebuild.
- Measure and diagnose the engine before ordering
- Follow professional clearance and assembly procedures
Build-system note: Intake, carburetor, exhaust or internal-engine changes can alter fueling, heat, sound and clutch demands. Elevation, temperature, fuel and engine condition matter too. Plan and verify the complete package.
Drivetrain, Tires & Brakes
Refresh wear items before changing the stock 14/50 gearing
The stock CRF100F uses a #428 chain, but modified CRF100F and XR100-family bikes frequently have non-stock gearing, chain lengths and tire sizes. Count both sprockets, read both sidewalls and inspect wheel clearance before ordering.
70/100-19Front tube
Bridgestone Standard Front Tube
A standard replacement tube listed for the later-model 70/100-19 front-tire size.
- Earlier Honda literature uses 2.50-19 notation
- Confirm tire size, valve type and rim condition
90/100-16Rear tube
Bridgestone Standard Rear Tube
A standard replacement tube listed for the later-model 90/100-16 rear-tire size.
- Earlier Honda literature uses 3.00-16 notation
- Inspect the tire, rim strip, spokes and wheel bearing
Stock referenceChain & sprockets
Count the installed gearing before ordering
Honda's stock reference is a #428 chain with a 14-tooth front and 50-tooth rear sprocket. The required chain length depends on the installed gearing and axle position.
- Replace a worn chain and sprockets as a set
- Do not order from model name alone on a modified bike
Mechanical drumsBrake baseline
Restore adjustment and braking condition before adding power
The stock CRF100F uses drum brakes at both ends. Inspect lever and pedal free play, cables and rod, wear indicators, shoes and drum condition.
- Both wheels should turn freely after adjustment
- Hydraulic brake parts do not apply to the stock setup
Service Parts & Information
Build a known maintenance history for a discontinued CRF100F
Unless reliable records came with the motorcycle, treat its service history as unknown. Begin with the correct manual, fresh fluids, a serviced air cleaner and a complete inspection.
Factory referenceOwner information
Honda Owner's Manual Finder
Honda's official portal provides searchable owner information for later CRF100F model years and contact instructions for manuals older than 2010.
- Select the exact year and search CRF100F
- Use the manual supplied with the bike first
2004–2009 CRF100F coverageService manual
Clymer CRF80F/CRF100F Manual
A printed service, repair and maintenance reference whose stated 1992–2009 coverage includes CRF100F model years 2004–2009.
- Does not cover 2010–2013 CRF100F models
- Confirm the exact model-year scope before ordering
Track riding timeService planning
Moose Resettable Hour Meter
A no-battery hour meter that wraps around the spark-plug wire and helps track time on a bike without an odometer.
- Peel-and-stick installation
- Not compatible with the hour-meter mounts listed on its PDP
Screw-type adjustersValve service
Motion Pro Tappet Tool Set
A repositionable wrench and driver set designed to hold the locknut while a screw-type tappet adjuster is positioned.
- Includes 8, 9 and 10mm sockets plus three driver styles
- Follow the exact-year service procedure
Browse All CRF100F Parts
The full selection includes universal, replacement and model-specific items. Confirm the exact year and configuration on every product page.
Build Your Setup
Four sensible CRF100F build paths
Use these as priorities, not mandatory packages. Begin with identity and condition, then match the setup to the rider and intended use.
Build 01
Used-Bike Recovery
- Verify VIN, year and modifications
- Inspect fuel, intake and carburetor
- Service oil, valves and spark plug
- Inspect clutch, chassis, drivetrain and brakes
Build 02
Manual-Clutch Trail Baseline
- Confirm rider fit and protective equipment
- Set clutch, throttle, brake and shift controls
- Keep engine response and gearing predictable
- Practice starts, stops, shifting and low-speed control
Build 03
Trail Durability
- Add supported engine and hand protection
- Improve foot and hand control where needed
- Refresh chain, sprockets, tires and bearings
- Inspect suspension and drum brakes before harder riding
Build 04
Coordinated Performance 100
- Complete chassis, clutch and brake service first
- Match front and rear suspension support
- Select one compatible intake, carburetor, exhaust and engine plan
- Jet, gear and support the clutch around the finished build
Older-Bike Baseline
CRF100F maintenance quick guide
This checklist uses Honda's 2013 maintenance reference as a starting point when service history is incomplete. Use the Honda owner or service manual for the exact model year to set intervals, fluid levels, procedures and torque values.
| Item | When to check | What to verify |
|---|---|---|
| Identity & modifications | Before the first parts order | VIN/model label, year, engine, carburetor, wheels, gearing and non-stock components |
| Pre-ride inspection | Before every ride | Fuel or oil leaks, tires, spokes, chain, controls, clutch, brakes, fasteners and free steering |
| Initial service | About 100 mi / 150 km or 1 month | Complete the exact items in the year-correct Honda schedule |
| Engine oil | Initial service; then about every 600 mi / 6 months | Honda reference: 1.0 US qt after draining; SAE 10W-30, API SG+, JASO MA |
| Air cleaner | About every 600 mi / 6 months | Service more often in wet or dusty conditions; inspect sealing, airbox and intake boot |
| Fuel & carburetor | After storage or poor running | Fresh fuel, clean tank/petcock/lines, float valve, passages, jets, choke and intake sealing |
| Drive chain & sprockets | Inspect and lubricate about every 300 mi / 500 km or 3 months | #428 chain, 25–35 mm slack, alignment, 14/50 stock gearing and hooked teeth; confirm replacement length |
| Spark plug | About every 600 mi / 6 months | CR7HSA or U22FSR-U; 0.60–0.70 mm gap; inspect the cap and replace as needed |
| Valve clearance | Initial service; then about every 600 mi / 6 months | Engine cold: 0.002 in / 0.05 mm intake and exhaust |
| Clutch & controls | Before every ride; then per schedule | Lever condition, cable routing, smooth action, 10–20 mm lever free play and complete engagement/release |
| Brakes | Before every ride | Lever/pedal operation, cables, adjustment, wear indicators, shoes and drums |
| Chassis | At baseline and periodically | Steering, wheel and swingarm play; fork/shock condition; frame, peg mounts and fasteners |
The numerical baselines above come from Honda's 2013 CRF100F owner information. Follow the full schedule and procedures for the exact motorcycle. Service more frequently after dust, sand, mud, water, long storage or hard use, and record dates or engine hours.
Common Questions
Honda CRF100F FAQ
Quick answers for model identification, stock specifications, rider setup, maintenance and common upgrade decisions.
What years does this Honda CRF100F guide cover?
This guide covers the 2004–2013 U.S.-market Honda CRF100F. Some product listings begin earlier because they also cover XR100 or XR100R applications. Always confirm the actual model name and the individual product's year range.
Is the XR100R the same as the CRF100F?
Not exactly. The XR100R is the CRF100F's closely related predecessor, and many parts span both models, but the model name, year and product application still matter. Use the frame label and VIN—not plastics, decals or a seller's description—to establish the exact motorcycle.
Is the CRF100F the same as the CRF80F or CRF125F?
No. The CRF80F, CRF100F and CRF125F fill related trail-bike roles, and some products may span more than one model, but their engines, chassis, wheels and controls are not universally interchangeable. Verify the exact application.
Does the CRF100F have a manual clutch?
Yes. The CRF100F uses a hand-operated, wet multi-plate clutch with a five-speed transmission. Correct lever condition, cable routing and free play are important for predictable engagement and rider learning.
Is the CRF100F fuel injected?
No. The stock CRF100F uses a 22mm piston-valve carburetor. Fuel condition, carburetor cleanliness, jetting, float operation and intake sealing should be checked before poor running is blamed on the ignition or corrected with performance parts.
Does the CRF100F have electric start?
No. The stock U.S. CRF100F uses a kickstarter. Check fuel, choke use, valve clearance, spark and compression if correct starting technique does not produce reliable cold starts.
Who is the CRF100F sized for?
Choose by physical fit and skill rather than age alone. The rider needs suitable ground reach, hand strength, lever reach and the ability to coordinate a manual clutch, throttle, shifter and brakes. Honda lists a 30.9-inch seat height and a 220-lb maximum total load, including rider and accessories.
Is the CRF100F street legal?
No. The U.S. CRF100F was designed and manufactured for off-road use. Registration and equipment rules vary, so adding individual accessories should not be assumed to make it legal for public-road use.
What tire sizes does the CRF100F use?
Later Honda references list 70/100-19 front and 90/100-16 rear, while earlier literature uses 2.50-19 and 3.00-16 notation. Honda lists 15 psi cold for both. Read the installed sidewalls and follow the exact-year manual and tire-maker guidance.
What chain and sprockets are stock on the CRF100F?
The stock reference is a #428 chain with a 14T front and 50T rear sprocket. Count the installed teeth and determine the required chain length around the actual axle position before ordering or cutting because modified gearing can change the requirement.
What spark plug does the CRF100F use?
Honda specifies an NGK CR7HSA or DENSO U22FSR-U as the standard plug, with a 0.60–0.70 mm (0.024–0.028 in) gap. Follow the exact-year manual for inspection and installation.
What oil does the CRF100F use?
Honda's 2013 owner information specifies SAE 10W-30 motorcycle oil meeting API SG or higher and JASO MA, with 0.9 liter (1.0 US qt) after draining and 1.1 liters (1.2 US qt) after engine disassembly. Use the exact-year oil specification, level-check procedure and fill quantity rather than treating capacity as a blind pour-in amount.
What should I inspect when buying a used CRF100F?
Verify identity and modifications, then check cold starting, smoke, leaks, fuel condition, carburetor, air cleaner, clutch operation, controls, chain and sprockets, tires, spokes, wheel and steering play, suspension, drum brakes, frame and footpeg mounts.
What should I upgrade first on a CRF100F?
Begin with a safe, dependable stock baseline. Restore worn controls, add protection where the riding environment shows a need, and change suspension only after wear and rider fit are assessed. Save intake, carburetor, exhaust and internal-engine work for a coordinated, properly fueled build.
Ready to Set Up Your CRF100F?
Confirm the bike, restore a healthy baseline and build around the rider.
Shop CRF100F parts for 2004–2013 or ask CRF's Only to help distinguish CRF100F and earlier XR100-family applications before you order.