Probably the easiest and most useful of my MYOG projects. Made from an Alpkit 20l airlok extra. Sort of following Alpkit's own MYOG seatpack thread on their own site but I first cut out the base then laid it out flat rotated at 90 degrees to their version so I would have the tabs to each side and a horizontal opening. Not huge in size but it takes my sleeping bag very nicely. I seam sealed the new seam but as it carries my sleeping bag I will take the extra precaution of putting it in an airlock drybag first (which weighs very little). No leg rub and I hardly noticed it was there. I did notice an improvement to the steering with less weight on the bars though.

Hi Ray,

Tidy looking seatpack. :) You couldn't post up the link to the Alpkit guide could you? I've just been looking around their website and I can't seem to locate it.

Cheers, Jack.

Hi Jack, on Google search type in "diy saddlebag alpkit" and it will bring it up. If you want full instructions as to how I did it I'm happy to oblige because like I say I did mine a little different.

It's a faff posting links on my phone - google alpkit diy saddle bag

Ray, what's the advantage of mod other than the profile is slightly better? That's never been that much of an issue for me, not really any leg rub with an unmodded bag. The mod loses space

Hi Jamiep, your right it does lose space. Mine is less work and faff basically and also has less seams to leak.

Looks very tidy ray. Very impressive.

Looks a neat job - whats stability like without a strap going underneath?

Those look like really good KISS design principles being applied. http://www.alpkit.com/bikepacking/diy-saddlebag/

Nice one, I think I'd pass the strap right under though to take the strain off the side loops

rudedog wrote:Looks a neat job - whats stability like without a strap going underneath?

Moves a bit but not much.

restlessnative wrote:Nice one, I think I'd pass the strap right under though to take the strain off the side loops

I think the side loops are strong enough to cope and a strap running underneath tends to pull the bag closer to your thighs.

jamiep wrote:Ray, what's the advantage of mod other than the profile is slightly better? That's never been that much of an issue for me, not really any leg rub with an unmodded bag. The mod loses space

Hi Jamie, sorry I misread this earlier. I have tried mounting unmodded 8l bags and was never happy with the result. I just happened to have a 20l bag going spare so thought why not, otherwise it would never get used.