ROBERT AXLE PROJECT · US-machined thru-axle adapters
Genuine Robert Axle Project BOB Trailer bobbins (per pair) — a direct replacement for your existing part.
Robert Axle Project Bobbins for BOB Trailers - Per Pair
A genuine Robert Axle Project replacement part for BOB trailers.
These bobbins are made by the Robert Axle Project to complete their axles for compatibility with the BOB Trailer. - Sold in pairs. - Manufactured from 303 Stainless Steel. - Includes stainless steel hardware for attaching to axle.
Highlights
- Genuine RAP part — Direct replacement, no compromise on fit
- Made in USA — Machined in Bend, Oregon
At a glance
- Best for — Replacing a lost or worn BOB trailer part
- Ideal rider — BOB trailer owners
Full specification
- Material — 7075 aluminium axle shaft with stainless steel ends
- Made in — USA — Bend, Oregon
- Warranty — Lifetime — Robert Axle Project
- Compatible brands — BOB
Pro tip
Keep the original hardware in a small parts bin — RAP parts are direct replacements, and having the stock part handy is helpful for future setup changes.
What's in the box
- Bobbins for BOB Trailers - Per Pair — Genuine RAP replacement part
Will it fit
A genuine Robert Axle Project replacement part. Fits the corresponding BOB trailer setup — replace like-for-like.
Quick answer
Genuine Robert Axle Project BOB Trailer bobbins (per pair) — a direct replacement for your existing part. £34.95.
Fast facts
- Material: 7075 aluminium axle shaft with stainless steel ends
- Made in: USA — Bend, Oregon
- Warranty: Lifetime (RAP)
- SKU: 42198
Choose if
- You need a like-for-like replacement for the corresponding BOB trailer part.
Not ideal if
- You need a different BOB spare — check the specific part number against RAP's catalogue first.
FAQ
How do I know if this axle fits my bike?
Check your bike manufacturer's spec sheet for rear-axle diameter, thread pitch and total length. Or unscrew your existing rear axle and read the markings. Or email fit@hitchabike.co.uk with your bike make, model and year.
Is the trailer hitch included?
No. The hitch is what comes with your trailer (BOB skewer, Croozer Click & Crooz, Thule ball hitch, etc.). This axle just gives that hitch a mounting point on your bike.
What tool do I need to install it?
A 5 mm Allen key — the same one you likely already carry.
Is there a warranty?
Yes — Robert Axle Project offer a lifetime warranty on their axles and adapters.
Where is it made?
Machined and tested in Bend, Oregon, USA.
