would this cage be ok for holding a battery on a Ebike conversion..?

I holds a 1.5L Nalgene water bottle, which is about 3.3lbs. Four pounds would probably be okay, but most eBike batteries weigh considerably more.

what is the spacing of the holes for attaching to the bike? my bike has holes 5.5 inches apart, which is larger than the standard hole sizing.

Max spacing of existing drilled holes is 3.75 inches. However - overall length of drilled surface is 6.75 inches. So there is room enough to drill another hole in the bracket or consider adding a Wolf Tooth B-RAD 3 or 4.

would this fit two msr 30oz fuel bottles?

I'm reluctant to say NO outright, because where there's a will, there's a way. However the bottles you mention are about 3-inch diameter each, while the cage is about 4-inches across. Thus the cage will not cradle 2 bottles of that diameter side-by-side snugly. I would not buy it for that purpose. The cage does work well for single larger diameter flasks and bottles that will nest between the side rails.

Is it a blayblad are a cup holder

It has seven platypus cupholders.

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Blackburn CARRYING CAGE BB OUTPOST CARGO CAGE 23#, Grey

Product ID: 49417411

Details

Brand
Blackburn
Colour
Grey
Material
Aluminium
Size
One Size
Vehicle service type
Bicycle

🔩Triple mounting holes

⚖️4kg load capacity

🛡️Silicone strap security

₨29595

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Description

🚴‍♂️ Carry More, Worry Less – The Ultimate Cargo Cage Upgrade

SECURE SILICONE STRAPS - Keeps cargo locked in place, no more jostling on the move
FEATHERLIGHT DURABILITY - Only 164g including straps—strong yet barely there
HEAVY DUTY CARRYING POWER - Supports up to 4kg/8.8lbs for all your essentials
VERSATILE TRIPLE MOUNTING - Three sets of mounting holes fit multiple frame sizes seamlessly
UNIVERSAL FRAME COMPATIBILITY - Mounts easily to 2 standard bottle cage bosses for hassle-free installation

The Blackburn Outpost Cargo Cage is a lightweight, durable aluminium bike accessory designed to securely carry up to 4kg of gear. Featuring triple mounting holes for versatile frame compatibility and silicone-backed straps to prevent cargo movement, it’s the perfect solution for millennial professionals who demand both style and function on every ride.

Specifications

ASIN	B00NT4KXBA
Automotive Fit Type	Universal Fit
Best Sellers Rank	58,208 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 187 in Bottle Cages
Brand Name	Blackburn
Colour	Grey
Compatible with Vehicle Type	Bicycle
Customer Reviews	4.6 4.6 out of 5 stars (1,742)
Handle Type	Integrated handle
Included Components	nothing
Item Dimensions L x W x H	20L x 15.2W x 10.2H centimetres
Item Type Name	Outpost Cage Bottle Cage
Item Weight	4 Ounces
Manufacturer	BLACKBURN
Manufacturer Part Number	7149605
Manufacturer Warranty Description	producer
Material Type	Aluminium
Model Number	7149605
Mounting Type	Frame Mount
Number of Items	1
Number of Packs	1
Shell Type	Rigid or Semi-Rigid Shell
Size	One Size
Style Name	Outpost Cage
UPC	196178238489
Unit Count	1.0 gram

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₨29595

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Sri Lanka.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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