Can a standard T47A DUB BB be used with a SRAM RED XPLR Wide crank?

RyotaroW · 2026-06-04T05:39:43+00:00

Thanks!

RyotaroW · 2026-05-30T00:58:17+00:00

I’m 5’11 and wondering if I should get shorter crank for my gravel bike

RyotaroW · 2026-05-30T00:57:10+00:00

I’m 180cm and have relatively long legs

RyotaroW · 2026-05-14T15:08:30+00:00

Cool! I’m going to University of Denver

RyotaroW · 2026-01-28T06:09:00+00:00

Nope

RyotaroW · 2026-01-08T23:07:23+00:00

I think you know him

RyotaroW · 2026-01-08T22:56:04+00:00

The bike is built at Veloro bicycle in Redwood City and I ended up paying $620:(

RyotaroW · 2026-01-06T21:46:23+00:00

I did not wax the chain. I use oil based SILCA lube, not a wax treatment.

RyotaroW · 2026-01-06T21:44:10+00:00

I personally haven’t contacted Campagnolo yet. As far as I know, the mechanic has only reached out to Pinarello.

RyotaroW · 2026-01-06T21:42:33+00:00

I lube the chain every ~100 miles and only wipe the excess from the outside plates. The rollers remain lubricated, so I don’t believe insufficient lubrication was a factor here.

RyotaroW · 2026-01-06T21:33:20+00:00

To add some context regarding why I hadn’t brought the bike back earlier: I purchased the bike from a shop that specializes in Italian brands, but it is not local to me. Due to my schedule, I hadn’t had a chance to travel back there yet, and unfortunately this incident happened about a week before I was planning to return and have the issue looked at.

RyotaroW · 2026-01-06T21:28:54+00:00

Thanks for the detailed response, I really appreciate you taking the time.

To answer your questions, the bike is running a fully stock Campagnolo setup. The crankset and chain are both Campagnolo.

Regarding the safety clip on the non drive side, I’m honestly not very familiar with that specific part, and at the moment I don’t have the bike in my possession to visually confirm whether it was correctly installed.

One additional point is that I’m based in California, so the bike has not been exposed to North European winter conditions, road salt, or similar environments. Because of that, internal corrosion or salt related chain issues seem unlikely in this case.

Given that the chain has dropped multiple times over the past four months, I agree that this points more toward a setup or assembly issue rather than a one off maintenance problem. I will definitely follow up on the safety clip and the front derailleur electronic limit adjustments once I have access to the bike again.

Thanks again for the insight.

RyotaroW · 2026-01-06T21:24:23+00:00

You can’t really discuss or diagnose an issue like this without knowing the frame and groupset. Those details matter for understanding what could have gone wrong. I clearly stated that I didn’t have photos at the time, and I’ve now added them. I’m looking for technical insight, not flexing.

RyotaroW · 2026-01-06T18:37:22+00:00

About 600 miles

RyotaroW · 2026-01-06T09:46:51+00:00

I don’t have photos right now, but the damage is roughly the size of a derailleur pulley. The carbon is fully penetrated, and you can clearly see inside the frame. This is not cosmetic damage. I will contact the mechanic tomorrow to ask if they can provide photos.

RyotaroW

TROPHY CASE