

Saw it in a G Line Facebook group, thought it's worth sharing in a more public forum. 5000 miles/ 8000km, rider is maybe 90-100kg. He noticed the crack after feeling a low tyre pressure sensation in the rear.
The bike is modded with a Rohloff hub. Not that it would cause this crack, but could be a reason Brompton rejects it for a warranty claim. He's going to try to get it warrantied anyways. He clearly loves the bike (the mileage and the Rohloff!) so hopefully Brompton do right by him!
by edtse88
7 Comments
My p line electric also had this problem.
Luckily I got a new triangle within warranty.
There seems to be rust around the crack, wonder if there was a lot of internal corrosion there.
That means the left hand side triangle would have been cut. I am keen to have this done by kinetics but feat something like this happening too.
Ok splitting the G has gone too far now
Same position as the other cracked rear triangles on the P lines, seems Brompton need to beef it up unless they already have with a rolling change.
엄청 공포스러운 사진이에요. 다친건 없죠?
What torque range are you talking about?! I don’t think that a tiny bicycle is comparable to quadzilla’s sprinting machines. Also very first time to see steel failure