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Description
Gebla Rohbox ShimKit A21A modification kit that allows you to use Shimano Hydraulic drop bar shifters to operate the Rohloff Speed Hub. The Gebla Shimkit is a unique and creative way to modify drop bar Shimano Road or gravel shifters to operate a Rohloff internal geared hub. Previous versions of the Gebla only worked with Sram Double tap shifters, so enabling Shimano compatibility is a huge win. It creates by far the neatest way to run a Rohloff Hub and drop handlebars.
A modification kit that allows you to use Shimano Hydraulic drop bar shifters to operate the Rohloff Speed Hub.
The Gebla Shimkit is a unique and creative way to modify drop bar Shimano Road or gravel shifters to operate a Rohloff internal geared hub.
Previous versions of the Gebla only worked with Sram Double tap shifters, so enabling Shimano compatibility is a huge win.
It creates by far the neatest way to run a Rohloff Hub and drop handlebars.
Requires a Gebla Rohlbox as well. As a shop we specialise in Rohloff and Gebla products so feel free to reach out with any questions or for help.
For use with Shimano GRX810 / GRX600 / GRX400 / 105 ST-R7020 shift-brake levers. You may require the ShimKit Crown Tool to fit these (available seperately, see links below).
NOTE: This is for compatible Shimano levers with Production Year 2021 and before (right hand thread on right side, left hand thread on left side). Please refer to Gebla's website to see how to determine your STI's levers Year of Production. Minor changes were made to the levers that determine which specific Gebla ShimKit you require (A22 or A21). It is recommended you visit Gebla's website for fitting instructions.
NOTE: This is for compatible Shimano levers with Production Year 2021 and before (right hand thread on right side, left hand thread on left side). Please refer to Gebla's website to see how to determine your STI's levers Year of Production. Minor changes were made to the levers that determine which specific Gebla ShimKit you require (A22 or A21). It is recommended you visit Gebla's website for fitting instructions.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 4
doesn't whistle as loud as other chuckit balls I've seen, but a good ball.
makes some noise, but I've seen (and played with) others at the dog park that whistle much louder than the 1 I got. all Chuckit balls... so, just this one I'm betting.
but it flys good and the dog loves to chase it.
he chews it a fair bit as well and the ball has not taken much damage from him (lab mix) or others that have had a go at it.
I'll likely buy another at some point ... just wish it was a little louder when flying.
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Reviewed in the United States on November 4, 2025
★★★★★ 5
Blue ball, my dog likes blue.
Just a ball right? Evidently not! My dog won’t chase an orange chuck it ball or the glow in the dark ball- only the blue one 🤷🏼♀️
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Reviewed in the United States on May 9, 2025
★★★★★ 3
I wanted a blue ball
It's great. It just wasn't blue.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
its a great ball
works well
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Reviewed in the United States on July 8, 2025
★★★★★ 5
Colorful, Sturdy & Great Value
Color: Large Set of 4
Purchased for our two puppies when they were 2 months old and weighed about 14 pounds so theses balls were a little big for them to hold in their mouths but that didn't stop them from trying. While they did like these balls they much preferred softer soccer balls, the later of which did not hold up well at all. I had hoped they would play with these balls more when they were older but that hasn't happened 5 months later. I guess it's no fun if you can't tear the toy apart. Colors are very bright and they do enjoy chasing after them as long as I am the one rolling them across the room for them. Maybe when they progress to batting things with their paws they will start to do this for themselves.
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Reviewed in the United States on May 18, 2025
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