I'm using three different frame bags for general cycling. I like having some storage on the bike that is accessible while riding. Yes, handlebar bags offer storage that is easy to reach, too. Frame bags have the benefit of holding heavy items without effects on the handling of a bike. Frame bags also add storage space to the bike and can complement front and rear bags.



The largest bag is the Revelate Tangle frame bag. The bag is sold in 3 sizes. The largest bag fits my size 60cm size Soma Double Cross easily. The Soma frame has a slightly sloping top-tube that is 604mm long. The headtube is also very tall. The bag is held along the top-tube and allows the use of two water bottles. The bottles fit well enough, but removal and re-installation require contact with the bag.

The bag is very well made. It should be very durable and highly water tight. zippers are on both sides and an internal panel divides left and right side pockets. I put tools and spares, including a large air pump on the left side and I store my wallet, phone, food and sunscreen on the right. The bag is secure and does not sway. Plenty of storage.

I would imagine that the bag might restrict the placement of water-bottles with smaller frames. But the bag is ideal for large frames with near horizontal top-tubes.

https://www.revelatedesigns.com/inde...=1&ProductID=5

Sizing:

Small : 15"-18" mountain bikes, or larger Aluminum frames. Some 4 bar full suspension.

52-56cm road / cross bikes

Top length 17", Height 4"

Medium - 17"-20" Mountain frames, 55-58cm road & cross bikes

Top length 19.5", Height 4.5", 1" of height at head tube.

Large - 20"+ steel mtn frames, 56cm- 62cm road & touring bikes.

Top length 21", height 6", 1.5" of length at the head tube.

The second bag is the Jandd Frame Bag.



The smaller size of the Jandd Frame bag and more moderate material quality make this bag more affordable. The bag looks durable and well made, I expect it to last many seasons.

http://www.jandd.com/detail.asp?PRODUCT_ID=FFP

The bag has good volume and can hold a large 14" hand pump. The bag offers enough space for personal items, phone, wallet, tools, spares and a few snacks.

The bag fits my 59cm size Cyclocross frame with room to spare. My bike has a 160mm headtube, the bag should also fit touring bikes with 140mm headtubes easily, but smaller bikes with short headtubes might not fit.

The last bag is the Nashbar frame bag

This is a nice low cost bag that will fit most bikes. The quality is good and mine have lasted many years. The bag is very secure. Space is also generous.

The bag does eliminate the seat-tube mounted water bottle. Here it is on a size 51cm Cyclocross bike.

http://www.nashbar.com/bikes/Product...2_167563_-1___