We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two blue rubber-and-metal chain tensioner rollers with 8mm bore

Unique-Bargains

Unique-Bargains Chain Tensioner Roller 8mm Blue 2 Pcs

SKU CH-73GM-C4T0M

Two 8 mm chain tensioner rollers with sealed bearings, 36 mm diameter, for motorcycles and ATVs

  • TypeDrivetrain Components
  • Smoother chain operation from duty-bearing roller pulley
  • Waterproof rubber-metal construction resists wear and corrosion
  • Fits most dirt bikes, street bikes, ATVs and off-road vehicles
  • Ready-to-install 36 mm rollers with 8 mm bore
  • Two-piece pack covers both tensioner positions

8mm Chain Tensioner Roller Pair

This two-piece set supplies 8 mm inner-diameter pulley wheels for motorcycle chain tensioning. Each roller measures 36 mm total length and 36 mm outside diameter. The blue rubber-and-metal construction includes sealed bearings for immediate fitment.

Suits riders maintaining dirt pit bikes street

Builders who need a different bore size or a complete tensioner assembly should look elsewhere. The universal-fit claim covers many common off-road and street models but does not guarantee compatibility with every frame or swingarm design.

Handles standard chain-guide duties on most

The 8 mm bore and 36 mm diameter match typical OEM tensioner positions. Riders running oversized chains or custom swingarms may find the fixed dimensions limit adjustment range.

Highlights

  • Smoother chain operation from duty-bearing roller pulley
  • Waterproof rubber-metal construction resists wear and corrosion
  • Fits most dirt bikes, street bikes, ATVs and off-road vehicles
  • Ready-to-install 36 mm rollers with 8 mm bore
  • Two-piece pack covers both tensioner positions

Specifications

BrandUnique Bargains
TypeDrivetrain Components

Questions about this item

Will the 8 mm inner diameter fit my bike's existing chain tensioner bolt?

The roller has an 8 mm inner diameter, so it matches bolts or axles of that size. Check your current tensioner's bolt diameter before fitting.

Can I keep my original metal tensioner arm and just replace the worn roller wheel?

Yes, the 36 mm outside diameter roller slides onto the existing arm if the arm accepts an 8 mm bore and 36 mm wide pulley.

How do I confirm the new rollers are seated correctly after installation?

Spin each blue roller by hand; it should turn freely on its sealed bearings without binding, and the chain should track centrally on the 36 mm rubber surface.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.