TTR125

Engine -
Fuel Systems -
Drivetrain -
Suspension -
Exhaust -
Lighting & Electrical -
Body & Frame -
Wheels -
Brakes -
Accessories & Tools

Featured Items

ProCycle SUPERMOTO 17" Wheel Set

Complete set of supermoto wheels. We custom build our wheels to fit your bike!
Unlike other supermoto wheels that use aftermarket hubs, our supermoto wheels are built on OEM hubs for maximum compatibility with your bike!
Stock hubs allow you to use the rotors and sprockets built for your bike instead of expensive and difficult to obtain parts for aftermarket hubs.
Our Supermoto wheels are carefully laced and trued to provide you with a solid, high-quality wheel.
We use high quality Excel rims and Buchanan's heavy gauge spokes and heavy-duty nipples. All bearings and seals come pre-installed.

New Yamaha OEM hubs
Excel 2.5"x17" front rim, clear-anodized aluminum
Excel 3.5"x17" rear rim, clear-anodized aluminum
Buchanan's stainless steel heavy gauge spokes
Buchanan's heavy-duty zinc-plated nipples
Bearings and seals pre-installed
Upgrade to Sun Rims and get a 2.75"x17" front and 3.5"x17" rear rim

All our wheels are custom built to order, please allow 2-3 weeks for delivery.

BBR 26mm Keihin Carburetor Kit

Highly recommended for big bore TTRs! The stock carburetor is just barely adequate for a stock motor. If you do any engine modifications this kit is essential to getting the most out of your engine mods!

26mm round-slide Keihin carb
Pre-jetted for most big-bore applications
Includes extra jets for fine tuning
CNC machined manifold adapter
Includes throttle and cable

Lightened Flywheel Service

Send YOUR flywheel to us for lightening.
The stock TTR125 flywheel is extremely heavy and was designed to make the TTR easy to ride for beginners. If you're looking for better overall responsiveness this is your best "bang for your buck" performance improvement for the TTR.

A lightened flywheel greatly increases bottom-end acceleration, and improves throttle response. Allows you to flip the front end up easily in 1st, 2nd, or 3rd gear to hop over logs and obstacles while trail riding without having to gas the throttle and pull up on the handlebars!

BBR Big Bore 150cc Kit, with Camshaft

Complete kit with custom made cylinder and camshaft.

BBR aluminum cylinder with steel liner (bored, honed and ready to use)
58mm piston, pin, clips, and rings
Includes head and base gasket
New (not reground) high-performance camshaft

Additionally the BBR Carburetor Kit is highly recommended to get the most from this kit.

BBR Forged 3 Piece Frame Cradle

Engineered for toughness using forged aluminum. This CAD designed structure optimizes strength while minimizing weight. Prevents frame stretching and protects expensive engine cases.

Prevents frame stretch and protects engine
Forged for toughness
Brushed aluminum finish
All hardware included
Prevent the costly replacement or repair of a frame!

Engine

ProCom Rev Box

Complete replacement CDI unit for the TTR125. Enhanced power curve. 1000 RPM higher rev limit. Easier starting, crisper throttle response. This same rev box is also used by BBR Motorsports for their TTR125 rev boxes.

BBR 150cc Piston & Gaskets

Replacement piston kit and gasket set to freshen up your BBR 150 motor. Includes piston, rings, wrist pin, clips, head gasket and base gasket. This piston will not fit in the stock cylinder.

Powroll 160cc Big Bore Kit

INCLUDES: Sleeve, forged 61mm piston, pin, rings, circlips, head gasket, base gasket. Requires re-sleeving and boring of your stock cylinder, balancer gear removal, case machining, 110 octane race fuel.

Hotcams Performance Camshaft

Bolt on horsepower! Stage 1: single-cam motor. Excellent midrange and top-end power increase. Uses stock valve springs and rockers.

BBR Performance Camshaft

Designed to enhance mid-range and top-end power. Manufactured using the highest quality standards. No core required.

Flywheel Puller

Universal 3 bolt flywheel puller

BBR Big Bore 150cc Kit, with Camshaft

Complete kit with custom made cylinder and camshaft.

BBR aluminum cylinder with steel liner (bored, honed and ready to use)
58mm piston, pin, clips, and rings
Includes head and base gasket
New (not reground) high-performance camshaft

Additionally the BBR Carburetor Kit is highly recommended to get the most from this kit.

Lightened Flywheel Service

New Lightened TTR125 Flywheel

This is a NEW OEM Yamaha TTR125 flywheel.

Electric start flywheels are 14 ounces lighter than stock
Non-Electric start flywheels are 20 ounces lighter than stock
No need to send us your old one, just swap this one out and go!
New gasket included

Special order - please allow an additional 10 days

ProCycle Big Bore 130cc Kit, with Camshaft

This kit provides much of the performance gain of the more expensive 150 (143cc) kits. But gives better reliability due to the thicker wall of the cylinder sleeve.

Wiseco 55mm high compression 11:1 piston, rings, wrist pin, and clips
HotCams stage 1 performance camshaft
Includes top end gasket set
Requires cylinder to be bored to fit the larger piston

ProCycle Power-Up 125cc Kit, with Camshaft

This kit provides much of the performance gain of our 130 kit but keeps you legal for racing classes that don't allow motors over 125cc.

Stock bore size Wiseco 54mm high compression 11:1 piston, rings, wrist pin, and clips
HotCams stage 1 performance camshaft
Includes top end gasket set
Piston fits into the stock bore; requires no modification to your cylinder!

Fuel Systems

BBR 26mm Keihin Carburetor Kit

Highly recommended for big bore TT-Rs! The stock carburetor is just barely adequate for a stock motor. If you do any engine modifications this kit is essential to getting the most out of your engine mods!

26mm round-slide Keihin carb
Pre-jetted for most big-bore applications
CNC machined manifold adapter
Includes throttle and cable
Includes extra jets for fine tuning

BBR Free-Flow Filter Kit

High-performance, high-flow filter element and filter base for the TT-R 125.

Replaces stock filter and base
Filter base is made from HDPE plastic
3 times larger than stock filter!
Adds almost 1/2 a horsepower
Designed to fit inside the factory air box

Moose Racing Air Filter

Bonded, two-layer foam designed for maximum protection and airflow
Super Seal material seals off 100% water and remains air tight without grease.

ProCycle Jet Kit

Tune your stock carburetor for better power and response, easier starting and quicker warm up. Mikuni main and pilot jets.

Main Jets: #110 & #112.5
Pilot Jets: #17.5 & #20

K&N Air Filter

TTR125 '00-'08

Designed to increase horsepower and throttle response
OEM replacement filters designed to fit inside the factory air box
Larger surface area over foam filters, offers longer service intervals in dusty conditions
Four layers of premium cotton gauze provides outstanding filtration

Small Fuel Filters - 90 Degree or Straight

The small size and right angle hose barbs make it easier to fit into the small space between your fuel petcock and carburetor. Filter body is only 7/8" diameter. Straight filter is 2" long, 90 degree filter is only 1 5/8" long.

Drivetrain

BBR Heavy Duty Clutch Springs

TTR125 '00-'08

Heavy duty springs help prevent clutch slip in high-performance motors.

Custom wound from chrome-silicon wire
Preset for long life
Higher spring seat pressure to resist clutch slip

Chain & Sprocket Set

High-quality chain and steel sprockets for 2002 & later TTR125s.

14T or 13T front sprocket
49T or 54T rear sprocket
130-link Moose Racing Pro-MX Gold non-oring chain (must be cut to correct length)
Note: 2002 and later models have 10mm sprocket bolts.

Front Sprocket

For all years. Machined from impact and wear resistant chromoly steel. Heat treated, then finished with a nickel coating for corrosion resistance.

Rear Sprocket

Black hard anodized alloy sprocket. Machined sprockets made from 7075 T651 aluminum reduces distortion and provides optimal thickness, to extend sprocket and chain life. Note: 2002 and later models have a 10mm sprocket bolts. 2000-2001 models have 8mm sprocket bolts.

Barnett "Dirt Digger" Clutch Kit

Designed to improve the life and durability of your clutch, Barnett's "Dirt Digger" provides better rideablity with less slippage compared to stock.

Carbon fiber friction plates
Tempered steel drive plates go through a vibratory de-burring process and then are quality checked for flatness to provide optimum performance.
Heavy duty clutch springs are pre-set, shot-peened, and heat treated for performance and durability.

KG Clutch Kit

Kit includes friction plates and drive plates.

Hardened steel drive plates Steel clutch plates won’t expand or deform like aluminum drive clutch plates
3 times the life of the stock clutch plates

BBR Chain Guide

Fully wraps the chain to guide it onto the rear sprocket. Stainless steel hardware, anodized aluminum plate, and plastic buffer for low friction. Saves expensive engine cases.

Racing PRO-MX Gold Chain (Non O-Ring)

428 x 130 links. High Quality non-O-ring chain. Rust-resistant gold plated chain for high powered racing machines.

Suspension

Works Performance Rear Shock

The best rear shock you can buy for your TTR125. Custom set up for rider weights from 70 to 240 lbs. Non-reservoir type.

BBR Shock Spring

Sized perfectly for adult back-yard racing or fast/aggressive mini riders. This is the most important upgrade you can make for an adult sized rider. The stock suspension is too soft for most adults and aggressive kids. Fits stock shock.

30% stiffer than stock
Preset and stress relieved for long life
Custom wound from aircraft quality spring steel
Powder coated finish

BBR Fork Springs

30% stiffer than stock
Preset and stress relieved for long life
Custom wound from aircraft quality spring steel

Exhaust

BBR D2 Full Exhaust System

The BBR D-Section has put more racers on the podium than any other mini-bike exhaust system on the market.

Unique "D" muffler also allows for maximum tire clearance and packing volume
Thin-wall stainless steel header and mid-pipe
Lightweight 6061 aluminum D-Section muffler
Stainless steel heat shield
US Forest Service approved spark arrester

BBR Quiet Core

Replace your BBR standard exhaust screen with this to reduce the sound level of your bike.

Fits all BBR exhaust systems with removable spark arrester screen
Easy 2 minute installation by removing the 3 end cap bolts
Reduces sound output with minimal increase in back pressure
Makes your neighbor happy without ruining your bike's power delivery

Lighting & Electrical

Shorai Power Lithium Iron Battery

TTR125 - All Years

No more dead batteries. Holds charge for one year without maintenance
Two to four times the life of lead-acid batteries
Carbon Fiber Composite Case
Faster cranking for better starts
Environmentally friendly, just discharge and dispose
Ultra light and compact - You could easily carry a spare!

For each motorcycle shown, Shorai often, but not always, has three battery options. The first is the Standard Recommendation, second is the Race Recommendation and third is the Duration Recommendation. See below for the explanation of each of these recommendations, sample pricing and weight comparisons against the Yuasa YTX4L-BS that is stock in the TTR.

The Standard recommendation is the best overall pick for most applications, and has been selected to give strong cranking performance and long life span. For comparison , the LFX07L2 is 2.14 lbs. lighter than the lead-acid Yuasa YTX4L-BS and has almost twice the capacity of the stock battery.
The Duration recommendation is for those who want the strongest possible cranking performance and life span, and don’t mind a slight increase in weight and cost compared to the Standard recommendation. Users with extra electrical accessories - like stereo systems used regularly when the vehicle isn't running - may also choose the duration suggestion. The LFX 09L2 battery is 1.93 lbs. lighter than the YTX4L-BS and has more than twice the capacity of the stock battery.

Shorai Charger

You can charge your Shorai battery with a regular battery charger but if you want the very best for it, this charger is designed for optimum performance by balancing the individual cells in the battery. Balanced charging ensures the battery reaches its fullest capacity and longest life. 'Store' mode allows long term long term maintenance storage.

Shorai Charge/Store Dedicated Battery Management System for Shorai LFX only. 2A Max charge rate, connects via BMS 5-pin port on LFX batteries. Includes modes for full charge, or long-term storage. Input USA 110~120V 50/60 Hz.

For Shorai Lithium Iron batteries only

Body & Frame

BBR Forged 3 Piece Frame Cradle

Prevents frame stretch and protects engine
Forged aluminum for strength
Brushed aluminum finish
All hardware included
Prevent the costly replacement or repair of a frame!

Wheels

ProCycle SUPERMOTO 17" Wheel Set

New Yamaha OEM hubs
Excel 2.5"x17" front rim, clear-anodized aluminum
Excel 3.5"x17" rear rim, clear-anodized aluminum
Buchanan's stainless steel heavy gauge spokes
Buchanan's heavy-duty zinc-plated nipples
Bearings and seals pre-installed
Upgrade to Sun Rims and get a 2.75"x17" front and 3.5"x17" rear rim

All our wheels are custom built to order, please allow 2-3 weeks for delivery.

BBR Aluminum 16"/19" Wheel Set

Lighter and stronger than the steel production rims. These aluminum rims are fully dimpled and beautifully anodized.

16" Rear & 19" Front
Designed to use stock spokes
Anodized aluminum
Fully dimpled
1/2 pound lighter (per rim) than stock

Pro-Wheel Aluminum Rims with Heavy Duty Spokes 16"/19"

Pair of front and rear Pro-Wheel aluminum rims with heavy duty spokes.

Brakes

EBC Brake Pads/Shoes

Sintered Pads are best for regular riding. Long life, and good performance in all conditions
Sport Carbon pads are made for fast riding in dry conditions. Not recommended for mud, water, or sand

Stainless Steel Brake Line

00-06

This is a stainless steel braided brake line for the front brake. These lines are noted for improved braking performance and feel over the stock rubber brake lines.

Other Parts

Vapor Tachometer / Speedometer

Speedometer:

Current Speed
Maximum Speed
Selectable MPH/KMH Display

Tachometer:

Real-Time RPM Bar Graph
Numeric RPM Readout
Dual Programmable Shift Lights
Up to 20,000 RPM

Temperature:

Ambient Temperature
Engine Temperature (liquid cooled only)
Optional air cooled sensors available directly from Trail Tech
Dual Programmable Temp Lights

Distance:

Adjustable Distance
Permanent Odometer
Selectable Mile/Kilometer Display

Clock:

Hour Meter, Stop Watch, Ride Time
Accumulated Ride Time
Permanent Hour Meter

Power Input :

Includes Power Connection Fits All Machines
Accepts Any Power Input - AC/DC
Auto Switch to Internal Power if External is Removed
Permanent Memory Guarantees Data is Never Lost

Value Added :

Custom Designed for Exact Model Fit
All Parts Included to Complete Installation
One Year Warranty
Unlimited Free Trail Tech Phone and Email Support
Waterproof Connections
Bright White Backlit LCD Display

Haynes Repair Manual

With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the motorcycle. Haynes books have clear instructions and plenty of photographs that show each step.

Step-by-step procedures
Easy-to-follow photos
Complete troubleshooting section
Valuable short cuts
Color spark plug diagnosis

Complete coverage for your Yamaha Trail Bikes covering PW, RT, TT-R and XT225/350 models for 1981 thru 2000.

Routine Maintenance
Tune-up procedures
Engine, clutch and transmission repair
Cooling system
Fuel and exhaust
Emissions control
Ignition and electrical systems
Brakes, wheels and tires
Steering, suspension and final drive
Frame and bodywork
Wiring diagrams

Trail Tech Vapor Dashboard

Optional plastic dashboard with indicator lights protects the computer and places it in an optimum viewing position.
Included mounting bracket installs easily to triple clamp of most motorcycles.
Includes an assortment of indicator light lenses allowing customization to fit your needs.

Folding Shift Lever

Bolts directly to the shift shaft, eliminating the need for the stock linkage which can get sticky and is prone to collecting mud
Hardened splines won’t slip or rotate
Strong and grippy tip cover
Folding tips prevent snagging on brush or rocks
Steel levers withstand impacts and bends without breaking

BBR Shift Lever

Folding tip, forged aluminum shift lever from BBR Motorsports. Stronger and lighter than the stock shift lever.

Bolts directly to the shift shaft, eliminating the need for the stock linkage which can get sticky and is prone to collecting mud
Strong forged aluminum construction
Steel knurled folding tip (chrome plated)
Anodized titanium finish
1" longer than stock

ProCycle T-Shirts

Our own simple design printed on a nice tee shirt. Availability subject to stock on hand.

Clutch Holding Tool

Clutch holding tool
Made from medium carbon steel with hardened jaws. It feature spanner pins and the jaws open up to 5" wide. It's ideal for holding clutch hubs, flywheels, gears, sprockets, etc. From Motion Pro