The RAILBLAZA CupClam drink holder solves the problem of ineffective or nonexistent built-in cup holders.  This drink holder can be mounted in either horizontally or vertically mounted bases to hold water bottles and Nalgenes.  The extendable fingers hold the taller items in place, yet everything collapses into a convenient flat pack for storage. The teeth on the CupClam’s arms click into place holding everything tightly. Fits any RAILBLAZA base. 

The RAILBLAZA CupClam is available in black or white.  Please choose from the drop-down menu accordingly. 

  • Drink holder can be mounted horizontally or vertically 
  • Folds into a convenient flat pack for storage 
  • Base not included 


CupClam Drink Holder Only

RAILBLAZA Part Number:

Black: 02-4013-11
White: 02-4013-21

What You Get

1 x CupClam Drink Holder

CupClam Drink Holder StarPort Kit

RAILBLAZA Part Number:

Black: 04-4008-11
White: 04-4008-21

What You Get

1 x CupClam Drink Holder
1 x StarPort
1 x surface mount collar
1 x weather-tight gasket & cover
2 x 12-gauge 32 mm self-tapping screws
2 x M6 x 35mm machine screws, washers & nuts

Construction Materials

CupClam – UV stabilized fiberglass reinforced nylon plastic & UV stabilized PC plastic
StarPort – UV stabilized AES plastic
Locking Slide – UV stabilized PC plastic
Gasket – UV stabilized TPE Rubber
Stainless Steel fasteners

Here is a video link for more information: 


Additional information



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