CC-275 — A-frame raised 2-inch bicycle rack receiver
View CC-275 productStromberg CC-275 Bike Bunk: A–I Parts & Mounting Guide
The Stromberg Carlson CC-275 Bike Bunk bolts to the A-frame of a suitable travel trailer and provides a raised 2-inch receiver for a compatible RV-approved bicycle rack. The Bike Bunk is the receiver structure only; the bicycle rack is purchased separately. Its 100 lb limit includes both the empty rack and the bicycles.
The factory's CC-275 illustrated installation and replacement-parts manual uses drawing callouts A through I. Match those identifiers to the assembly before ordering service parts.
Bike Bunk component numbers A–I
| Callout | Factory number | Quantity | Component / position |
|---|---|---|---|
| A | 7605-104P | 2 | Lower frame pockets that clamp to the trailer A-frame |
| B | 7605-117 | 4 | Backer bars placed against the opposite side of the A-frame |
| C | 5/16-inch × 4-inch fastener set | 8 | Bolts used with the lower pockets and backer bars |
| D | 7605-107P | 2 | Bent vertical support posts |
| E | 7605-175 | 1 | Cross tube with raised receiver |
| F | CP-1075 | 2 | End caps for the cross tube |
| G | FST-1620 | 2 | ¼-inch × ¾-inch stop bolts, factory installed |
| H | FST-2010 | 4 | ⅜-inch × 1-inch set screws used for positioning |
| I | ⅜-inch × 2¾-inch fastener set | 4 | Bolts connecting the vertical posts to the upper tube pockets |
Stromberg also lists 2275 as a replacement hardware package and lists the individual lower pockets, backer bars, support posts and cross tube through its replacement-parts catalog. The original manual identifies backer bars as 7605-117; the manufacturer's later service listing uses 7605-117P. Use the existing assembly and current part reference when obtaining a replacement.
A + B — lower mounts
Frame pockets and backer bars secure the assembly to supported A-frame members.
D — bent posts
Two curved posts rise above the trailer tongue and create room for the propane-tank area.
E — upper cross tube
The receiver-support assembly spans the two posts and carries the bicycle rack.
G–I — retention hardware
Stop bolts, set screws and through-bolts position and secure the upper assembly.
Conceptual part-location guide, not a structural engineering drawing or a drilling template. The manufacturer's PDF provides the assembly orientation.
Important Bike Bunk measurements
| Manufacturer dimension | CC-275 specification |
|---|---|
| Permitted trailer A-frame mounting width | 14–55 inches, subject to actual frame and trailer clearances |
| Maximum A-frame member height | 6 inches |
| Top of A-frame to top of cross tube | 33½ inches |
| Top of A-frame to bottom of bike-rack receiver | 29 inches |
| Cross-tube length | 37½ inches |
| Upper receiver-tube centre spacing | 34¼ inches |
| Vertical post outside diameter | 1.9 inches |
View the exact Bike Bunk product
View CC-275 productCheck trailer fit, loading and clearance
The Bike Bunk is intended for a properly rated RV-approved bicycle rack with a 2-inch receiver shank. Stromberg recommends it primarily for two-place bicycle racks, but physical compatibility depends on rack size and location, the trailer body, propane equipment and the tow vehicle's full turning radius. It is not approved for e-bikes or motorbikes.
Before using the Bike Bunk, add together the weight of the bicycle rack and every bicycle. That combined load must not exceed 100 lb or a lower limit imposed by the rack, trailer structure or tow vehicle. Do not treat the 2-inch receiver as a trailer-towing hitch.
Installation and propane access
- Locate suitable A-frame mounting positions and verify adequate clearance for propane cylinders, front storage equipment and the trailer body.
- Position the lower pockets against the frame with backer bars on the opposite side, initially leaving them adjustable.
- Install the curved posts and cross tube, check the entire tow vehicle/trailer turning sweep with the intended bike rack and bicycles, then follow the manufacturer's drilling and final fastening sequence.
- Keep propane shutoff valves accessible. A soft tank cover may permit access without removing the crossbar; harder covers can need additional clearance or removal.
- Check hardware, bike restraints and turning clearance before each trip. Follow the two-person installation procedure specified by Stromberg.
Installation instructions and component diagrams
Official CC-275 A–I parts diagram and installation guide (PDF); CC-275 specifications and fit requirements; Bike Bunk replacement component numbers.
The CC-255 Trailer Tray is a different A-frame accessory intended for cargo, not a substitute for the Bike Bunk receiver. If your RV uses a rear ladder-mounted bicycle rack, compare the Surco ladder-mounted carrier guide.
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