Changing gear during heavy rain

[DGR]

During heavy rain, instead of turning my twist-shifter, my fingers can just slip over it, even if I tighten my grip.  So it’s difficult (or impossible)  to change gear.  I assume that a film of water gets between my fingers and the twist-shifter, and acts as an unwelcome lubricant.

I’d be grateful for any advice that anyone can provide about anything I can do to ensure that I’ll be able to change gear reliably even during heavy rain.

[Andyb1]

Would wrapping an elastic band (a big one) around the grip a few times give a softer rubber surface to hold?

BTW there are at least 2 different Rohloff grips - maybe one is better than the other when wet?

[Andre Jute]

Would wrapping an elastic band (a big one) around the grip a few times give a softer rubber surface to hold?

Wrap a strip of double sided Velcro around the grip and lock it onto itself.

BTW there are at least 2 different Rohloff grips - maybe one is better than the other when wet?

I like the triangular grip, in part because summer and winter I cycle with thin leather dress gloves, which can get slippery when wet.

Before I changed to the Rohloff and its original triangular grip, I used yellow knitted glassfibre workmen's gloves which came with little black spots of some rubbery, grippy stuff on the palms. I bought them at the local hunting, shooting and fishing store. Bit hot in summer but I live in Ireland where the rain didn't get the memo about taking a break in the summer...

[mickeg]

I almost always am wearing bike gloves, they help get grip on the shifter.

I am in USA.  There is a product here called Shoe Goo that is similar to a glue, comes in a tube like tooth paste.  You can put some of that on a shoe sole to build up the sole where it wears down.

I put three beads of Shoe Goo on my shifter, mine is the second generation of shifter, round in shape.  I wanted to make it more triangular in shape.  I applied two or three layers of Shoo Goo, it shrinks as it hardens.

Photos attached.  Photos are nine years old, I am still using it the same way as shown in the photos.

I do not know if a similar product to Shoe Goo is made where you are or not.