The trombone conundrumMarch 18, 2013 at 11:14 | Posted in bicycles | 1 Comment
Tags: bicycle, bike, cargo, kids, radish, trombone, xtracycle
As I detailed in another post, I recently fitted out the Radish with another child seat, to facilitate the carriage of both my kids. Whilst I’m very happy with the outcome from a kiddie transport perspective, it did raise another issue. The Yepp Maxi seat does not fit directly to the deck on the back of the bike, but to an adapter which it in turn bolted to the deck. This adapter (in essence it’s the top bit of a regular bike carrier that accepts the Yepp seat) then sits proud of the deck by about three centimetres, but only extends a short way along it.
This means the long expanse of deck I strap my trombone to is no longer available. The problem was a pressing one, as I needed to be able to get to rehearsal with the thing as Mrs Chillikebab needed the car. I had previously considered making some sort of box or short platform to bolt behind the adapter, to raise up the rest of the deck to the same level. However, as I thought about it more I happened to glance at the old wooden deck I had removed from the bike (in order to install the seat I had to switch it for a different design which has mounting holes and is a bit narrower). Suddenly the solution presented itself – simply bolt the old deck over the top of the adapter with some long bolts and wingnuts.
A quick trip to Bunnings and I had the requisite parts. I drilled the holes into the wooden deck in the right places, and it was all very easy; secure the bolt to the deck at the bottom with a nut, and then simply drop it into place, securing underneath with the wing nuts. This took me all of ten minutes to do, but looking at it I was concerned that any lateral pressure on the rack would transfer to the point where the bolt was secured to the plywood deck, possibly cracking it. So I added a couple of wooden blocks underneath, glued to the underside of the deck, to give a longer ‘sleeve’ for the bolt to sit in.
And that was it. Mrs Chillikebab was impressed; it was probably the first time I’d ever said a job would take ‘an hour or so’, and I’d actually finished it in under an hour. Usually ‘an hour or so’ means ‘all day’ (with ‘a couple of minutes’ meaning ‘a good hour’, and ‘it will take a whole day’ meaning ‘at least two weekends’).
There’s a few little refinements I need to make; I need a few more washers to get the level exactly right, and I’ve had to improvise some spacers underneath at the back as the wingnuts don’t fit right under the deck as they catch on the tubes at the side. I need to find a more elegant solution to this, as it’s a bit of a fiddle getting the wingnuts on and off. Still, it works, and I was able to strap my trombone to it and get safely to rehearsal. I can also put it on and take it off the bike in a matter of seconds, which is important – when little children want to be taken to the park, they don’t want to wait whilst I track down the right sized spanned to unbolt some bike accessory in order to fit their bike seat.
I guess the only downside of this is that the trombone is both higher and further back than previously, and this does detrimentally affect the bike handling. Its a particular problem at low speeds – you have to work quite hard to balance the bike, which actually creates some strain on my back. In any proper city with decent cycling infrastructure it wouldn’t be a problem, but to get to rehearsal I have to navigate the joy that is Gladesville Bridge – navigating around all the obstacles and ramps was a little tricky. Still, it’s manageable, and I’m quite happy that I solved the trombone conundrum so quickly and elegantly.