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EUNORAU M12 Thru Axle Trailer Hitch Adapter vs SWETRACE Bike Trailer Hitch Connector

Buy the EUNORAU M12 if you have a mid-drive ebike with a thru axle and need to tow a single-wheel cargo trailer. It is a purpose-built steel thru-axle adapter with a defined M12x1.5 thread and two dropout ranges, so fit is predictable. The SWETRACE is a generic two-pack of steel hitch connectors for standard quick-release or bolt-on setups; it is cheaper in spirit but not a thru-axle solution and gives no thread or dropout guidance. Neither is a precision component, but the EUNORAU is the one that matches a modern mid-drive thru-axle frame.

  • Choose the EUNORAU M12 if your ebike has a thru axle and you are towing a single-wheel cargo trailer.
  • Choose the SWETRACE if you have a conventional axle and just need spare hitch connectors for a standard trailer.

Prices

  • EUNORAU M12 Thru Axle Trailer Hitch Adapter: $45.00 at BHive Moto Shop (checked today)
  • SWETRACE Bike Trailer Hitch Connector: $8.99 at Amazon (checked today)
  • Difference: the SWETRACE Bike Trailer Hitch Connector is $36.01 cheaper than the EUNORAU M12 Thru Axle Trailer Hitch Adapter today
EUNORAU
EUNORAU M12 Thru Axle Trailer Hitch Adapter for Mid-motor Ebike

EUNORAU M12 Thru Axle Trailer Hitch Adapter

EUNORAU M12 Thru Axle Trailer Hitch Adapter for Mid-motor Ebike

5(2 ratings)
$45.00at BHive Moto ShopObserved at 2:35 AM
See all prices and details
Visit BHive Moto Shop
Pros
  • Correct thread and dropout specs published
  • Built for mid-drive thru-axle frames
  • Steel construction
  • Clear compatibility list for EUNORAU models
Cons
  • Only fits thru-axle bikes
  • Single unit, no spare
  • Limited to EUNORAU-style trailers
SWETRACE
SWETRACE Bike Trailer Hitch Black Connector for Universal Bicycles and E-Bikes 2Pcs

SWETRACE Bike Trailer Hitch Connector

SWETRACE Bike Trailer Hitch Black Connector for Universal Bicycles and E-Bikes 2Pcs

$8.99at AmazonObserved at 2:34 AM
See all prices and details
Visit Amazon

As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Two connectors per pack
  • Fits standard and electric bikes
  • Steel body
  • Small and easy to store
Cons
  • No thru-axle support
  • No thread or dropout specifications
  • Generic fit may need adjustment
  • Not aimed at mid-drive frames

What separates them

EUNORAU M12 Thru Axle Trailer Hitch AdapterSWETRACE Bike Trailer Hitch Connector
Axle typeThru-axle M12x1.5, designed for mid-drive ebikesGeneric connector for standard and electric bikes, no thru-axle spec
Fit guidanceTwo dropout ranges (142-148mm, 175-190mm) and two axle lengthsOne size, 7.5 x 7.5 x 3cm, no dropout or thread data
Thread pitchSpecified M12x1.5Not specified
QuantityOne adapter per orderTwo connectors per pack
Trailer compatibilityEUNORAU one-wheel cargo trailerGeneral bike trailers
MaterialSteelSteel
InstallationReplaces or extends the thru axle at the dropoutBolts to the frame near the rear axle

Price history

$83.98$8.99
Oct 31Nov 9
  • EUNORAU M12 Thru Axle Trailer Hitch Adapter: lowest $42.00 on Nov 8 at BKRE; $42.00 on Nov 9.
  • SWETRACE Bike Trailer Hitch Connector: lowest $8.99 on Nov 9 at Amazon.

Prices at every store

EUNORAU M12 Thru Axle Trailer Hitch Adapter

  • Eunorau-ebike.comNew

    In stock

    $45.00+ $14.99 shippingObserved at 2:35 AM
    Visit Eunorau-ebike.com
  • BKRENew

    In stock

    $42.00+ $25.00 shippingObserved at 2:35 AM
    Visit BKRE
  • Turner MotorbikesNew

    Availability unknown

    $45.00Observed at 2:35 AM
    Visit Turner Motorbikes
  • BHive Moto ShopNew

    Availability unknown

    $45.00Observed at 2:35 AM
    Visit BHive Moto Shop

Also available at

  • EUNORAU E-BIKE USCheck price at EUNORAU E-BIKE US
  • BKRECheck price at BKRE
  • Tampa Home & Garden StoreCheck price at Tampa Home & Garden Store
All 14 stores and price history →

SWETRACE Bike Trailer Hitch Connector

  • WalmartNew

    In stockSold by MutablyReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $14.76Free shippingObserved at 3:00 AM
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $8.99Observed at 2:34 AM
    Visit Amazon
  • eBayNew

    Availability unknownSold by yunchaungke022 (99.9% positive, 1,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $10.46Free shippingObserved at 3:00 AM
    Visit eBay

Store links may earn us a commission.

All 3 stores and price history →

Specs compared

SpecEUNORAU M12 Thru Axle Trailer Hitch AdapterSWETRACE Bike Trailer Hitch Connector
ColorBlackBlack
BrandEunorau—
Axle Length185mm/233mm—
Dropouts142mm-148mm/175mm-190mm—
Thread PitchM12*P1.5—
MaterialSteel—
Attachment PointAxle—
Mounting MechanismHitch—
Frame MaterialSteel—
Compatible Bike TypeElectric bike—
Compatible Trailer TypeCargo trailer—
Compatible Axle TypeThru-axle—
Show all 14 specsShow fewer specs
SpecEUNORAU M12 Thru Axle Trailer Hitch AdapterSWETRACE Bike Trailer Hitch Connector
Length185mm, 233mm—
size—7.5 x 7.5 x 3cm

What reviewers say

EUNORAU M12 Thru Axle Trailer Hitch Adapter

Buyers who ordered the correct width describe it as exactly what they wanted and say it fits as expected on a mid-motor e-bike.

What people mention
  • FitPraisedBuyers say it fits as expected when the dropout width matches their bike.
  • Thread pitchMixedIt only works with M12 x 1.5 axles, so other bikes are left out.
  • BuildPraisedThe steel body feels solid for towing a loaded trailer.
  • CompatibilityCriticisedIt is tied to EUNORAU's own trailer hitch and listed models.

Questions and answers

Will the EUNORAU M12 fit my thru-axle ebike?
Only if your axle is M12x1.5 and your dropout width falls in 142-148mm or 175-190mm. Measure the dropout spacing before ordering.
Can I use the SWETRACE on a thru-axle bike?
No. It is a generic connector for standard axles and does not replace a thru axle.
Which lasts longer?
Both are steel. The EUNORAU sees load through the axle, so correct torque matters; the SWETRACE clamps to the frame and can loosen if not checked.
Is the EUNORAU worth stepping up to?
If you ride a mid-drive thru-axle ebike, yes. The SWETRACE cannot do that job regardless of fit.
Do I need two connectors?
Only if you tow with two bikes or want a spare. The EUNORAU ships as one adapter.

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