Islabikes shifters?

For discussions about bikes and equipment.
ratherbeintobago
Posts: 323
Joined: 5 Dec 2010, 6:31pm

Islabikes shifters?

Postby ratherbeintobago » 7 Sep 2019, 3:34pm

No. 2 spawn is now zooming around on her sister’s cast-off Beinn 20L; only problem is that the shifter (7sp SRAM twister) is a bit stiff.

Has the hive mind got any suggestions? I’ve considered swapping for a SRAM trigger but I had slightly… agricultural X9 on a previous bike and am unsure little hands would cope.

pwa
Posts: 10070
Joined: 2 Oct 2011, 8:55pm

Re: Islabikes shifters?

Postby pwa » 7 Sep 2019, 4:08pm

Have you tried flushing with GT85 / WD40 to see if it just needs lube?

User avatar
531colin
Posts: 12468
Joined: 4 Dec 2009, 6:56pm
Location: North Yorkshire

Re: Islabikes shifters?

Postby 531colin » 7 Sep 2019, 4:31pm

Wrap a big fat rubber band round the shift-grip.
Service the cable/shifter....I'm well out of date, original "Gripshift" had a specific grease for the shifter....plastic parts might not appreciate solvents etc?

alexnharvey
Posts: 755
Joined: 10 Jan 2014, 8:39am

Re: Islabikes shifters?

Postby alexnharvey » 7 Sep 2019, 4:39pm

I put a slick/die-drawn/polished stainless inner cable and new outer cable pieces on my son's beinn. I also cleaned out the grip shift when replacing the cable. That made it easy enough for him to turn. I had also been considering a switch to trigger shifters for the same reason and have put it on hold. They can also take a fair bit of thumb strength for the upshifts.

ratherbeintobago
Posts: 323
Joined: 5 Dec 2010, 6:31pm

Re: Islabikes shifters?

Postby ratherbeintobago » 8 Sep 2019, 2:46pm

It’s at least a third hand bike and I bet the cables have never been changed.

Can’t see an obvious oil port on the shifter (SRAM Comp 3.0)?

alexnharvey
Posts: 755
Joined: 10 Jan 2014, 8:39am

Re: Islabikes shifters?

Postby alexnharvey » 8 Sep 2019, 4:09pm

There's isn't, it's just a plastic on plastic system, it's a very basic shifter. There's some special grip shift lube you can buy. I just cleaned the grit out and smeared some of the existing lube around.
Last edited by alexnharvey on 9 Sep 2019, 6:22am, edited 1 time in total.

RRSODL
Posts: 163
Joined: 17 Apr 2012, 7:22am

Re: Islabikes shifters?

Postby RRSODL » 8 Sep 2019, 11:23pm

ratherbeintobago wrote:No. 2 spawn is now zooming around on her sister’s cast-off Beinn 20L; only problem is that the shifter (7sp SRAM twister) is a bit stiff.

Has the hive mind got any suggestions? I’ve considered swapping for a SRAM trigger but I had slightly… agricultural X9 on a previous bike and am unsure little hands would cope.


I had the same problem with grandson's Bennin and it really needed a replacement so I ordered a new one for £9 I think ( years ago) from Wiggle.