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I have a Rimpact V1 fitted in the rear of one of my bikes.
Over time it has become a little loose around the rim to the point that it's now spinning in the tyre.
Spin the wheel up, brake and I can hear it carry on spinning inside the tyre.
Has anyone successfully shortened one?
If so did you find anything that works to glue it back together after cutting a small section out of it?
I've done it before with an insert that had started to rattle in the tyre*
On that occasion I used a ziptie to re attach the two ends but eventually that pulled through the insert.
* took me ages to work out where the annoying noise on square edge hits was coming from.
I've rejoined a v1 after it came apart.
Drill a hole 1cm or so in from each edge, then loop a ziptie through both holes.
Edit: Just read yr post properly. Maybe go a bit further in than before? Or don't pull it super-tight?
Contact adhesive from a tube, not a spray. 2 layers. 1st layer 'sealed' the foam and gave a key for the second layer, which did the actual bonding. Seems to be impervious to sealant and is fine at c. 9 months.
Thanks both.
The zipties were a fair distance in last time but still pulled through.
Any particular brand?
I might try contact adhesive and a ziptie as belt and braces.
I've glued one of mine back together using E6000 glue (unbranded ShooGoo) as it's what I had lying around at the time. It had split after I blew the tyre off the rim on a rocky drop, not a fault of the insert at all as I'd landed badly and burped it flat landing sideways. I used a small film of it on each end that was left to go tacky before another layer and push them together. Held it in place with a cable tie through two holes while it cured overnight, removed the tie and it's been in the tyre for over a year since repairing and it was still fine when I switched the tyre over a few weeks ago.
My rimpact went baggy and I could hear it bouncing around inside the tyre.
I tried shortening it with the finest Wakol contact adhesive and the noise vanished for a while, but I guess the sealant broke down the adhesive and it fell apart again.
I probably should've added some mechanical backup or used some chemical based glue.
Any particular brand?
Err. Cheap crap from the pound shop. I'll see if I can give you an idea of its constituents later.
Rimpact themselves use heat to bond the ends of the material together to make it into a loop.
It wasn't cheap crap, it was gorilla glue contact adhesive.
Thanks.
I'll get some and give it a go.
Used the gorilla contact glue on it and it seems to be stuck back together pretty well.
I'll try it without a ziptie then if it fails go again with the glue and backup ziptie.
Double glue with a contact adhesive. Â Use this technique for kayak outfitting. Â My guide can be found here -Â https://www.unsponsored.co.uk/press/double-glueing/