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TTR125L: Drivetrain

TTR125L

The TTR125L was manufactured from 2000 to 2008 and features a kick-start mechanism. The TTR125L model is powered by a carbureted 124cc air-cooled single-cylinder engine with a compression ratio of 10.0:1 and is mated to a 5-speed transmission that employs a wet clutch system. The TTR125L has a seat height of 31.7 inches and a ground clearance of 11.6 inches, making it suitable for a diverse range of riders, from novices to more experienced individuals. This motorcycle is primarily designed for recreational purposes and off-road trail riding. It is distinguished by its soft suspension, wide seat, and high ground clearance, contributing to its user-friendly nature for riders of varying experience levels.

Small Wheel = SW
Big Wheel = BW
Year
Wheel Type

Chain Size:

Front Sprocket:

Rear Sprocket:

Front Tire:

Rear Tire:

Spark Plug:

'00-'08
Small Wheel

428x116

13T

49T

70/100-17

90/100-14 

NGK
CR7HSA
'01-'08
Big Wheel

428x122

13T

54T

70/100-19

90/100-16

NGK
CR7HSA

Drivetrain

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

  • 13T front sprocket
  • 49T or 54T rear sprocket
  • 130-link DID chain (must be cut to correct length)
  • Note: 2002 and later models have 10mm sprocket bolts.
Choose Sprocket Size
Add Chain Lube
Ships in 3-5 business days
$94.95
TTR125L '00 - '08

High Quality chain. You'll need to cut to fit your sprocket combination.

Non o-ring.  Clip type master link.

Choose Type / Length
Add Chain Paste
Add Chain Lube
Ships same business day
$36.95

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

Add Chain Lube
Ships same business day
$39.95
Universal fit. May require additional adjustment or modification.

Always carry a spare master link when out on the trail.

  Master links are not interchangeable. Be sure to check the manufacturer and series on your chain.

These do not fit the TW200 or XT250. Only for 520 or 525 chains, Please verify chain size.

Choose Pitch / Type
Add Master Link Pliers
Ships same business day
$7.95
TTR125L '00 - '08

For all years.

  • Machined from impact and wear resistant chromoly steel
  • Heat treated, then finished with a nickel coating for corrosion resistance
Choose Size
Add Chain Lube
Ships same business day
$21.95
TTR125L '00 - '01

Rear Sprocket

Note: 2002 and later models have a 10mm sprocket bolts. 2000-2001 models have 8mm sprocket bolts.

Choose Size
Add Chain Lube
Ships in 3-5 business days
$49.95
TTR125L '00 - '08

Black anodized 49 tooth 7075 T651 aluminum sprocket.

Ships same business day
$49.95
$24.95
TTR125L '00 - '08

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

Ships in 3-5 business days
$89.95
TTR125L '00 - '08

Reduce the friction dragging down your drivetrain.  This chain roller is made from Delrin®, it's self-lubricating and a significant improvement over stock. 

Does not use a bearing but rides directly on the frame boss. There is no mounting hardware included.

Ships in 3-5 business days
$10.95
Universal fit. May require additional adjustment or modification.
  • Accurately and quickly measures chain slack
  • Two scales measure both chain slack and chain to swingarm clearance
  • Setting chain slack properly dramatically improves chain life
  • Lightweight compact design fits easily in your tool box or road kit
  • Works on most street and dirt bike applications up to 75mm chain slack
  • Made from engineered nylon with aluminum measuring scale
  • Anodized laser-etched precision measuring scale
  • Refer to your owner's manual for proper chain slack and procedure
  • Patent pending
Ships same business day
$19.95
Universal fit. May require additional adjustment or modification.

Designed for quick and accurate alignment, this tool clamps squarely to the rear sprocket so the alignment rod can indicate sprocket alignment with the chain.

Ships same business day
$18.95
Universal fit. May require additional adjustment or modification.

Here is a tool to help you remove a few links from a chain that is too long. A great tool to have in your tool box.

The head of the pivot pin you are going to remove must be ground down level with the side plate before using this tool to push it out. Failure to do that will cause damage to the tool that is not covered by any warranty!

Ships same business day
$24.95
Universal fit. May require additional adjustment or modification.
  • PBR = press, break, rivet
  • Innovative design will press, break and rivet 520, 525 and 530 chains with one convenient tool (not for use on 428 chains)
  • Versatile design will remove chain pins, press master-link plates and rivet hollow nose and soft nose (quad stake) master link pins on O-Ring and non O-Ring type chains
  • Easy-to-use design allows you to change tool functions by simply moving the position of the anvil block
  • Indexing letters on movable anvil and body ensures correct tool configuration; simply line up the letter on the anvil to the letter on the body to get the configuration you need
  • All components conveniently store on tool when not in use
  • All steel construction with heat-treated components for strength and durability
  • May be supported in a vise or held with included handle
  • Great for the professional technician or DIY mechanic
  • Compact and light enough to carry in a tool bag for trail-side repairs
  • Patent Pending
Ships same business day
$120.95
Universal fit. May require additional adjustment or modification.

Can break or rivet chains from #35 to #530 like a pro.

kit includes a 2mm, 3mm, and a 4mm pin to fit most chains.

kit includes press plates,and all necessary riveting pieces and comes in a durable plastic case.

NOTE: when breaking a chain, YOU MUST grind the heads off of both pins on a link first.

Ships same business day
$74.95
Universal fit. May require additional adjustment or modification.

Innovative design that cleans chain from 3 angles at once. Long handle keeps fingers and hands away from chain and sprockets.

  • Will not harm O-ring chains
  • Easily adjustable for all chain sizes
Ships same business day
$13.95
Universal fit. May require additional adjustment or modification.

Introducing Oinker®, the revolutionary chain lube attachment for dirt bikes, street bikes, and ATVs. Say goodbye to messy lubrication. Oinker® attaches to any chain lube or wax, ensuring a precise and even application to both sides of your chain. This means minimal overspray, keeping your swing arm, rear tire, and brakes clean.

  • Even and Accurate Lubrication: Their patented dispenser features exit holes that align with your chain's link plates, ensuring the areas that need it most get it.
  • Minimize Over-spray: Keep your motorcycle clean and free of messy chain lube.
  • Reduce Waste: No more over-lubing your chain. Their patented dispenser enhances the efficiency of your lubricant use.
  • Rotatable Dispenser: Allows you to adjust your hand positioning. Ideal for bike's with chain guards.
  • Durable: Constructed from glass-filled nylon, Oinker is strong, durable, and resistant to chemicals.
  • Universal Compatibility: Fits any standard can of lubricant.

*For cans with an attached smart straw, you will need to replace it with the included nozzle

What's Included:

  • 1 Chain Oiler
  • 3 aerosol straws
  • 3 replacement nozzle to be used only on cans that have attached straws.
Choose Chain Size
Ships same business day
$19.95
Universal fit. May require additional adjustment or modification.

Make your life a little easier by having a set of these in your toolbox. Designed to simplify installation and removal of clip-type master links. One tip is shorter and notched to be placed on the pin which allows the longer end to push the clip.

Ships same business day
$23.95
Universal fit. May require additional adjustment or modification.

This Motion Pro press tool is a must have when installing and removing Clip-Style master links (520, 525 & 530 sizes).

Easily presses on and off master link plates, works on 520, 525 & 530 Clip-Style master links.

Maximum master link width 24.8mm.

Will not damage master links, hardened steel pins for reliable use.

Light weight billet aluminum construction.

Ships same business day
$36.95
Universal fit. May require additional adjustment or modification.

A high quality master link press tool from Wirth Machine used for the removal and installation of master links using a press fit link plate.

Fits 520, 525, and 530 pitch chain.

Ships same business day
$36.95
Universal fit. May require additional adjustment or modification.

ULTIMATE SPROCKET WRENCH KIT

  • 12” long wrench gives you more torque to get those thread locked sprocket bolts off easily
  • Double ended 12mm & 13mm to fit all modern motocross, Enduro and dual sport bikes
  • Dog leg wrench design allows wrench to easily clear rim edge and wide tires
  • 8mm allen fits most Japanese bikes 8” long for extra leverage
  • Torx T45 fits late model KTM and Husqvarna bikes, 8” long for extra leverage
  • Vinyl coated handles to protect rim edge and give a non slip grip
  • Makes routine sprocket bolt maintenance a quick and easy job
Ships same business day
$19.95