BA-100 — RV bumper-to-2-inch receiver adapter
View BA-100 productStromberg RV Bumper Bike Racks: BA-100, BC-202 & BC-202BA
Stromberg Carlson makes a bumper-mounted receiver adapter and several bicycle carriers, but those parts have different roles. The BA-100 adds a 2-inch accessory receiver to a suitable square RV bumper. BC-202 is a two-bike platform carrier that fits a 2-inch receiver. BC-202BA is a two-bike platform carrier supplied with its own bumper attachment. The larger BC-108 is a four-bike post-mounted rack. Choose the attachment first, then check both the load limits and the rack style.
Compare the attachment options
| Part number | What it is | Connection / bike count | Manufacturer loading information |
|---|---|---|---|
| BA-100 | Bumper-to-receiver adapter | 4-inch square bumper → 2-inch accessory receiver | Up to 200 lb vertical load, limited by the bumper rating; no towing |
| BC-202 | Two-bike wheel-cradle platform carrier | 2-inch receiver; two bicycles | 80 lb combined bicycle capacity |
| BC-202BA | Two-bike platform carrier with bumper attachment | Manufacturer lists 4- to 4½-inch square bumpers; two bicycles | 80 lb combined bicycle capacity |
| BC-108 | Four-bike upright post carrier | Receiver-mounted; four bicycles | 120 lb combined bicycle capacity |
Which assembly fits your existing RV?
You have a suitable 2-inch receiver
BC-202 slides into that receiver for two bikes. The receiver and RV must be approved for the loaded rack.
You have an approved square RV bumper
BC-202BA includes a bumper attachment for the listed bumper sizes. Confirm the bumper is rated for the dynamic load.
You need a 2-inch accessory receiver
BA-100 is an adapter, not a bicycle rack. It does not create a towing hitch and is not a substitute for frame reinforcement.
You need four-bike capacity
BC-108 is a post-style receiver rack, not the same wheel-cradle platform as BC-202.
Function-only overview; attachment positions are not a scaled drawing or a guarantee of vehicle compatibility.
Important differences in the bike carriers
BC-202 and BC-202BA: wheel-cradle platforms
These two-carrier designs use adjustable wheel positions and a central support with J-hooks. Stromberg specifies wheel cradles for tires up to 2½ inches wide; wider tires may require the manufacturer's separate BC-2FT adapter. The platform can tilt down for access, subject to rear-door and vehicle clearance. The maker's service parts are separately identified as wheel cradles, J-hooks, straps and frame tubes; those parts are not assumed to be included with a replacement accessory.
BC-108: four-bike post mount
The BC-108 carries bicycles on upper support arms and uses a different cradle-and-strap arrangement. Stromberg's current description identifies a receiver adapter sleeve and an anti-rattle pin. It is not tested or approved for electric bicycles. Check the total bicycle weight, frame fit, receiver size and required spacing before choosing it.
BA-100: a receiver, not a rack or towing hitch
The BA-100 bolts to a suitable 4-inch square bumper, supplying a 2-inch receiver opening for permitted accessories. Stromberg specifies heavy steel construction and a standard ⅝-inch hitch pin opening. Its 200 lb rating is not an automatic allowance to place 200 lb on every RV bumper. Never use the BA-100 for trailer towing.
Compare matching products
View BA-100 productBC-202 — Two-bike receiver platform carrier
View BC-202 productBC-202BA — Two-bike direct bumper platform carrier
View BC-202BA productBC-108 — Four-bike post-mount receiver carrier
View BC-108 productBefore purchasing or travelling with a carrier
- Determine whether the RV has an approved receiver, a suitable square bumper, or neither.
- Check the RV manufacturer's bumper/receiver and rear-structure limits. Use the lowest limit of the bumper, adapter, rack and vehicle.
- Include the empty rack weight when evaluating the imposed load, and confirm allowable dynamic use on the RV.
- Measure bicycle wheelbase, tire width and frame shapes; check the carrier's support and straps for all bicycles.
- Verify rear-door operation, lights, licence plate visibility, turning and ground clearance before travel.
Manufacturer specifications and service-parts drawings
Compare Stromberg Carlson's BA-100 receiver details, BC-108 rack specifications and platform-carrier replacement-parts names. Original dimensions and rack configurations appear in the 2026 Stromberg catalog, printed pages 28–30.
For a bicycle carrier attached to a rear RV ladder rather than a bumper or receiver, see the Surco ladder-mounted rack guide. The mounting methods are different.
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