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Parts/Drivetrain/Pinion gears/Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (21T)
Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (21T)
Trinity

Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (21T)

Part # TRITEP40213.5(8)
Pinion gearsLandcraft
Teeth
21T22T23T24T25T26T27T28T29T30T31T32T33T
Where to buy
$11.49
AMain Hobbies
Seen Oct 12, 2026
$11.49Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Team Trinity 48 Pitch Ultra Light Weight Aluminum Pinion Gears are precision machined with a 2.5mm wide tooth surface, and ultra lightweight for On-Road and Off-Road Racing. Stronger than molded composite gears, these pinions mesh with all 48 pitch spur gears, and have been titanium nitride hard anodized for longer life. Uses 3mm set screw (included), standard 3.175mm bore, and available in a variety of tooth count options. Tooth count is etched on the pinion gear for easy identification. 

Features:
  • Titanium Nitride Hard Anodized for Long Life and Less Resistance
  • Precision Machined Ultra Thin Tooth Profile (Less Than 2.5mm Wide)
  • Large Multi Hole Cutouts to Reduce Weight
  • For 1/8" Shaft (3.175mm) Motors
  • 3mm set screw included 
  • Size etched on each pinion
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews3.5 · 8 reviewsacross all options

JeerFoxVerified owneron Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (22T)

Used in Kyosho Mad Van VE with upgraded aluminum motor mount which has preset mesh and a Hobbywing Xerun V10 G3 6.5T. It lasted 5 minutes......

Adam HookerVerified owneron Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (27T)

These pinion gears strip spur gears in both my cars. I switched to thicker pinion gears and haven't stripped anymore spur gears.

Adam HookerVerified owneron Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (24T)

I bought a few of these, in different sizes, and now they strip my spur gears after a couple of runs. I put in a cheaper Yeah racing pinion gear in both my cars and the spur gear doesn't strip. I like Trinity's motors but these pinion gears aren't worth it.

Dylan FerreiraVerified owneron Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (26T)

These are lightweight, and strong. Have yet to have one strip out. Great product !

Joshua HodnettVerified owneron Trinity 48P Ultra Light Weight Aluminum Pinion Gear (3.17mm Bore) (24T)

this is the lightest and thinnest pinion i used and it made the buggy really quiet and seems smoother.

What reviewers say

Reviewers broadly praise the Trinity 48P aluminum pinion for being very light, thin and quiet, with several noting smooth running and true rotation. Ratings are split: five reviews rate it 5/5 and three rate it 1/5. The low ratings all report spur gear stripping, with one reporting a pinion lasting only five minutes in a Kyosho Mad Van VE. One 1/5 reviewer says the pinion lasted only minutes in a motor setup, while another says switching to thicker pinions stopped the stripping. The positive reviews mention strength and no stripping, but these reports come from different tooth counts, and the reviews do not establish which sizes or setups are most affected. Two 5/5 reviews appear to be identical text.

  • + Very lightweight
  • + Thin profile
  • + Quiet running
  • + Smooth, true running
  • − Reported spur gear stripping
  • − Pinion failure in one report within minutes
  • − Mixed durability reports across tooth counts
Summary generated from the reviews above.

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