Pipsqueak Posted May 25, 2021 Share Update on my corroding calipers. Today the DOT fluid finally squirted out of a hole caused by the corrosion. Pissed everywhere. I've sent them to be ground and welded because I like these brakes but I can't get spares in Covidville. Hopefully can get them up and running again. IMG_4514.HEIC Edited May 25, 2021 by Pipsqueak Link to comment Share on other sites More sharing options...
Chip Posted May 25, 2021 Share I love both my Race X2's and my Tech Evo M4's, great stopping power!! Link to comment Share on other sites More sharing options...
BaGearA Posted May 25, 2021 Share 9 hours ago, Pipsqueak said: Update on my corroding calipers. Today the DOT fluid finally squirted out of a hole caused by the corrosion. Pissed everywhere. I've sent them to be ground and welded because I like these brakes but I can't get spares in Covidville. Hopefully can get them up and running again. IMG_4514.HEIC 727.88 kB · 11 downloads hectic ???? , hope that's the last time you have to think about them (ps pun not intended) ( pps I barely saw the pun before posting ????) Link to comment Share on other sites More sharing options...
Pipsqueak Posted February 21, 2022 Share Update... Now my second caliper has dissolved. I'm gutted because I really like these brakes and I spent a lot of money on them. Ironically I dug out a 10 year old set of Shimano Deores and bolted those on. Still work as well as Shimano brakes can. What a pity. I emailed Hope and they aren't interested in my story. Told me not to ride on tar roads when they've been salted. Durban - ya right. A word of advice... take your calipers off every six months and clean them. Try sealing them or polishing/sealing the undersides. I think once the thin anno has been scratched, they just corrode like crazy. Link to comment Share on other sites More sharing options...
Steady Spin Posted February 21, 2022 Share How old are your brakes. I’ve had the same set of V4s for the past 9 years now with zero issues. Link to comment Share on other sites More sharing options...
BaGearA Posted February 21, 2022 Share That's actually deeply concerning , my tech3 x2 set are nearing 6 years and still running like new Link to comment Share on other sites More sharing options...
the nerd Posted February 21, 2022 Share 4 minutes ago, Steady Spin said: How old are your brakes. I’ve had the same set of V4s for the past 9 years now with zero issues. Old as F! Zero ****, only self inflicted. Nico van Loggerenberg 1 Link to comment Share on other sites More sharing options...
Steady Spin Posted February 21, 2022 Share 8 minutes ago, the nerd said: Old as F! Zero ****, only self inflicted. Same. The most reliable part Ive ever owned. Only bled twice in that time too. the nerd 1 Link to comment Share on other sites More sharing options...
Skylark Posted February 21, 2022 Share 1 hour ago, Pipsqueak said: Update... Now my second caliper has dissolved. I'm gutted because I really like these brakes and I spent a lot of money on them. Ironically I dug out a 10 year old set of Shimano Deores and bolted those on. Still work as well as Shimano brakes can. What a pity. I emailed Hope and they aren't interested in my story. Told me not to ride on tar roads when they've been salted. Durban - ya right. A word of advice... take your calipers off every six months and clean them. Try sealing them or polishing/sealing the undersides. I think once the thin anno has been scratched, they just corrode like crazy. Hope are machined from billet, from what I understand the kind of thing that's happened to your calliper should only happen on cast aluminium where the porosity can allow contamination like salt in and the expansion from corrosion can cause cracks and catastrophic failure. Link to comment Share on other sites More sharing options...
Pipsqueak Posted February 21, 2022 Share 3 minutes ago, Skylark said: Hope are machined from billet, from what I understand the kind of thing that's happened to your calliper should only happen on cast aluminium where the porosity can allow contamination like salt in and the expansion from corrosion can cause cracks and catastrophic failure. Times 2. Both of the undersides of the calipers just flaked away and eventually DOT fluid just started squirting out. Game over. I've had the brakes just over 2 years. Link to comment Share on other sites More sharing options...
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