It's me man Posted August 16, 2023 Share hiya, i need some advice please - of the 2 bikes im looking at 1 has either of the options i prefer viz one has disk brakes but Ultegra mechanical groupset, the other has Dura Ace Di2 groupo but rim brakes, my question is which is better or cheaper to upgrade to - change to eps or change to disk wheelset. both bikes are top end and similar prices though one is 2 years older - Thanks Link to comment Share on other sites More sharing options...
dardo82 Posted August 16, 2023 Share Not all rim brake frames can accept disc brake calipers (Mounting holes) Mongoose! 1 Link to comment Share on other sites More sharing options...
Mtree Posted August 16, 2023 Share 11 minutes ago, It's me man said: hiya, i need some advice please - of the 2 bikes im looking at 1 has either of the options i prefer viz one has disk brakes but Ultegra mechanical groupset, the other has Dura Ace Di2 groupo but rim brakes, my question is which is better or cheaper to upgrade to - change to eps or change to disk wheelset. both bikes are top end and similar prices though one is 2 years older - Thanks Would go for the bike with disc brakes, as it's a fair bit more costly to buy a groupset with hydraulic brakes that work well with disc brakes. Nothing wrong with Ultegra mechanical either. You won't be able to upgrade a rim brake bike to disc brakes, unless the frame was built around supporting both standards (those are rare) Even if you could, you would then need new hubs for the wheels or a whole new wheelset, as well as a partial groupset (shifters, calipers, discs) to support disc brakes (mechanical disc calipers aren't great). Edited August 16, 2023 by Mtree Link to comment Share on other sites More sharing options...
Ozzie NL Posted August 16, 2023 Share As mentioned previously; check if the frame with mechanical Dura Ace DI2 can accommodate disk brakes (if it is a recent frame it should). If so I would go with that one as electronic shifting is just ****** naais Link to comment Share on other sites More sharing options...
wattnow Posted August 16, 2023 Share Rim brake and better groupset in my opinion. For me the deciding factor wouldnt be which brake system it has but rather which wheelsets they have. Wheels are a huge determining factor of how a bike feels and rides and often the most expensive upgrade done on any bike. Just my 2c. Dont discount either the 2 different frames you are comparing... not all frames are made equal. Schnavel 1 Link to comment Share on other sites More sharing options...
ichnusa Posted August 16, 2023 Share Disc brakes above Electronics! Mtree 1 Link to comment Share on other sites More sharing options...
Mongoose! Posted August 16, 2023 Share I have reason to believe not all hub advisors above understood the question correctly... am i correct to assume the disc brake bike has hydraulic Ultegra (R8020) brakes and cable shifting? The Dura Ace bike has Di2 but is a rim brake bike? Edited August 16, 2023 by Mongoose! Mtree 1 Link to comment Share on other sites More sharing options...
It's me man Posted August 16, 2023 Share 1 minute ago, Mongoose! said: I have reason to believe not all hub advisors above understand the question correctly... am i correct to assume the disc brake bike has hydraulic Ultegra (R8020) brakes and cable shifting? The Dura Ace bike has Di2 but is a rim brake bike? yes that is the correct interpretation Link to comment Share on other sites More sharing options...
It's me man Posted August 16, 2023 Share 4 minutes ago, wattnow said: Rim brake and better groupset in my opinion. For me the deciding factor wouldnt be which brake system it has but rather which wheelsets they have. Wheels are a huge determining factor of how a bike feels and rides and often the most expensive upgrade done on any bike. Just my 2c. Dont discount either the 2 different frames you are comparing... not all frames are made equal. bora Ultra 35mm clinchers are rim braked and Aeolus comp5 are disk braked - both great wheelsets Link to comment Share on other sites More sharing options...
Mongoose! Posted August 16, 2023 Share If you have a top model rim brake bike. Keep it. The second hand value is sadly very low. Don't invest in it Rather invest in a disc brake bike and be more future proof. Dexter-morgan, Mtree and babse 3 Link to comment Share on other sites More sharing options...
wattnow Posted August 16, 2023 Share 2 minutes ago, It's me man said: bora Ultra 35mm clinchers are rim braked and Aeolus comp5 are disk braked - both great wheelsets Not overly knowelable on trek/bontager wheels but I believe these are aluminum wheels with a carbon fairing - around a 10K. Bora Ultra 35mm is a top tier wheelset (yes a few years old now), used to retail at around 30-40K. Wouldnt put those wheels in the same league. Bora also has the Cult Ceramic Bearings. They used to be Campagnolos flagship wheel and very light. danievj 1 Link to comment Share on other sites More sharing options...
Hilton. Posted August 16, 2023 Share 1 hour ago, wattnow said: Not overly knowelable on trek/bontager wheels but I believe these are aluminum wheels with a carbon fairing - around a 10K. Bora Ultra 35mm is a top tier wheelset (yes a few years old now), used to retail at around 30-40K. Wouldnt put those wheels in the same league. Bora also has the Cult Ceramic Bearings. They used to be Campagnolos flagship wheel and very light. 100%, I was going to say the same things ^ I believe you're correct, the Bont Comps are aluminium rims with carbon fairings: Note the small gaps where the spokes enter the carbon "rims" (fairings) - leaves space for a bit of water to enter. I don't think it's a big issue though, as it has drainage holes. Edited August 16, 2023 by Hilton. Mtree 1 Link to comment Share on other sites More sharing options...
Eugene Posted August 17, 2023 Share On 8/16/2023 at 2:26 PM, dardo82 said: Not all rim brake frames can accept disc brake calipers (Mounting holes) Do any rim brake bikes accept disc brake calipers? I have yet to hear of one (I could be mistaken though) Link to comment Share on other sites More sharing options...
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