Rocky Mountain 2018 Altitude C50 Tubeless: Check What Was Included
A 2018 Altitude C50 tubeless enquiry should distinguish component readiness from an assembled, verified tubeless system. Rocky Mountain's archive names compatible rims and ready tyres but excludes several consumables from the original C50 package. Before riding or conducting a braking demonstration on a covered bicycle, follow the recall notice (https://www.cpsc.gov/Recalls/2018/Rocky-Mountain-Bicycles-Recall-Mountain-Bicycles-Due-to-Crash-Hazard): stop use and obtain authorized-dealer verification of the required inspection and repair.
Read the 2018 Altitude C50 tubeless entries
The Carbon 50 section of the manufacturer archive (https://resources.bikes.com/en/bikes/altitude/2018) specifies Sun Düroc 30 rims as tubeless compatible. The same line explicitly says tape, valves and sealant are not included. That wording does not establish that an old wheel currently has no tape; it describes the original build supply, before any owner or dealer changes.
The tyre entries are Maxxis Minion DHF WT EXO Tubeless Ready 27.5 × 2.5 at the front and Minion DHR II WT EXO Tubeless Ready 27.5 × 2.4 at the rear. Record the complete names and positions rather than assuming the same casing or width was fitted to both ends. The historical photograph cannot verify the current internal setup of a tyre.
Inventory the actual wheels before buying supplies
Ask which rims and tyres are now installed, and compare their actual markings with the archived description. A replacement wheel or a different tyre may change the enquiry even when the frame is correctly identified as a C50. The useful shopping record concerns the present wheel assembly, not just a list copied from the frame's model year.
Then ask the wheel or tyre supplier to confirm appropriate tape, valves and sealant for those exact parts. The archive does not specify tape width, a valve length, sealant quantity or a pressure procedure. Leaving those questions open is more accurate than treating the number in the rim's name as an automatic installation instruction.
The C70 Shimano comparison shows why build level matters. Its archived Stan's Flow MK3 tubeless-ready rims list tape and valves included. That statement differs from C50 and does not say that every Altitude wheel package included the same consumables. It also does not establish that an older C70 still retains its original tape or valves.
A suitable next step is a verified parts list and, where needed, a wheel inspection by a competent workshop. This article supplies no bead-seating pressure, compressor method or assurance that an unknown used tyre is sound. Component labels establish a documentary starting point, while condition, installation and the separate bicycle recall still require resolution.
FAQ: Readiness questions
Did the C50 rim entry include sealant?
No. The original line says tape, valves and sealant were not included with its tubeless-compatible Sun Düroc 30 rims.
Were the original front and rear tyres the same width?
No. The archive lists 27.5 × 2.5 at the front and 27.5 × 2.4 at the rear, with different Minion model names.
Can the C70 included-parts line be applied to C50?
No. C70 Shimano lists tape and valves included with a different rim; C50 has its own explicit supply statement.
The C50 identification comparison helps check that the right build was selected. Find the surrounding historical information under Rocky Mountain bicycles.
Photograph credits and permissions
Photograph 1
Original title: Rocky Mountain Altitude C50 2018.jpg
Creator: ThienToons; creator URI: https://commons.wikimedia.org/wiki/user:ThienToons
Original source URI: https://commons.wikimedia.org/wiki/File:Rocky_Mountain_Altitude_C50_2018.jpg
License / permission: CC BY-SA 4.0
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