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I took my Allant with the "creaking, choo choo train" Shimano XT rear free hub in to my local bike shop again. Tech got on the ball ordering up a whole new wheel - second time. In the meantime, I contacted Trek customer support and they in turn contacted my local bike shop regarding my Allant...

On May 22 I posted that I got my bike back from the bike shop. They replaced the entire rear wheel to eliminate the grinding "choo choo" noise originating in the Shimano XT hub. I was happy to have my quiet ride back - hearing only the soft purr of the Bosche Motor. Well, the grinding is coming...

I had a "clicking" noise occurring somewhere in the headset - it happened when I would rotate the handlebar right & left. Took it all apart and tripped out on how they passed the signal cables, brake lines, and shifter cable down through the "rotary joint" in the head tube. It took me forever...

Seiber - unfortunately, I do not have the part number. The bike shop just ordered the entire wheel - including the Shimano Deore XT Hub, Rim, and spokes. The tech then transferred the original cassette, tire and tube to the new wheel assembly. This 12 speed free hub behaves differently than any...

That "buzzing bees" sound that is typical with free hubs (experienced when "coasting") is not present with this new Deore XT Hub either. I don't know what is up with these XT Hubs, but the one that came with the bike developed a sound best described as a "choo choo train" after about 300miles...

Finally! I got my allant 9.9 back from the bike shop. The techs ordered a whole new rear wheel from Trek and because of the "COVID-19 induced delays" it took about three weeks for the wheel to ship. Anyways, my bike shop techs replaced the rear wheel (with new hub). I have ridden about 30 miles...

Waiting to hear from my bike shop re results from corrective maintenance. If they have success changing out the rear hub, then my bikes’ symptom is a different one that what is being discussed on this thread. Would like to send you a video I recorded from my iphone of the problem. The format is...

I just dropped my allant 9.9 off at bike shop. They are going to go after the rear free hub.

That does sound like the same symptoms that I am experiencing - only on my Allant 9.9S it occurs all the time now (even under low torque conditions and in all gears). When I ride through a bike tunnel it is deafening. I have to turn up the volume on my podcasts just to drown out the relentless...

I have the same problem with my 2020 Trek Allant 9.9S. Not so much a "grinding" sound but more like a "creaking" that is in synch with the cadence - making it sound like a choo choo train. I am pretty sure that the sound is originating in the rear hub (Shimano Deore XT) and it is not the...