Rone69 Posted Monday at 12:16 PM Share Hi to all! I am trying to find the measures of the reach of various manufacturers' shifters, in the latest versions 10s/11s/12s, disc brakes or rim brakes, mechanical or electronic, unfortunately I have not found any data on the matter. Does any of you have any reliable data? Since I'm looking to move from Ultegra R8000 mechanic with rim brakes to Ultegra Di2 12v disc (R8100), there is anyone who know which is the difference in length to the "base of the hoods" , I'm tryng to understand if I have to buy shorter stem, is there anyone who can help me? Link to comment Share on other sites More sharing options...
splat Posted Monday at 03:19 PM Share Don't change your stem, but rather look at the reach of your handle bars. Older bars were set at about 100mm Newer bars are about 80mm or so to compensate for the longer hoods of disc brakes DieselnDust and Rone69 2 Link to comment Share on other sites More sharing options...
Rone69 Posted Monday at 08:11 PM Share 4 hours ago, splat said: Don't change your stem, but rather look at the reach of your handle bars. Older bars were set at about 100mm Newer bars are about 80mm or so to compensate for the longer hoods of disc brakes Thank you very much Bike Dewing 1 Link to comment Share on other sites More sharing options...
Bike Dewing Posted Monday at 08:43 PM Share 29 minutes ago, Rone69 said: Thank you very much Can change your stem just dont go shorter than 90.. also can look into shorter reach bars.. 75mm reach.. measure your shoulders if you do that and get the correct width while you at it.. hood angle can also shorten your reach if you not too far off.. Link to comment Share on other sites More sharing options...
J Wakefield Posted yesterday at 05:50 AM Share Hoods do change and have. Example the new SRAM is 5mm longer than previous and shimano from Di2 11 to 12 is also longer at 4m. the difference of 8000 to di2 you asked is 8mm in length Edited yesterday at 05:53 AM by J Wakefield DieselnDust, Jbr and splat 3 Link to comment Share on other sites More sharing options...
SSCC Posted yesterday at 07:16 AM Share 10 hours ago, Bike Dewing said: Can change your stem just dont go shorter than 90.. It really depends on the bike. Many modern geo gravel bikes come with 70 or 80mm stems. The bike bike radar voted as best road bike a year or two ago comes with an 80mm stem in a size large. Head tube angle, reach, fork off set all play a role. Bike Dewing 1 Link to comment Share on other sites More sharing options...
Bike Dewing Posted yesterday at 07:19 AM Share Just now, SSCC said: It really depends on the bike. Many modern geo gravel bikes come with 70 or 80mm stems. The bike bike radar voted as best road bike a year or two ago comes with an 80mm stem in a size large. Head tube angle, reach, fork off set all play a role. Look, my opinion there is based of bike fitter james videos and i have actually installed an 80mm stem on my gravel/allroad bike.. the front end does get a lot twitchier bellow 90.. i did not feel comfortable with it.. went back to 90 after two shortish rides Link to comment Share on other sites More sharing options...
J Wakefield Posted yesterday at 07:49 AM Share 29 minutes ago, Bike Dewing said: Look, my opinion there is based of bike fitter james videos and i have actually installed an 80mm stem on my gravel/allroad bike.. the front end does get a lot twitchier bellow 90.. i did not feel comfortable with it.. went back to 90 after two shortish rides I wouldnt go on much of anything Bike fitter James suggests in general. Maybe the battery he uses in his drill but thats about it Mook, splat, Bike Dewing and 3 others 1 5 Link to comment Share on other sites More sharing options...
Bike Dewing Posted yesterday at 08:06 AM Share 14 minutes ago, J Wakefield said: I wouldnt go on much of anything Bike fitter James suggests in general. Maybe the battery he uses in his drill but thats about it Does no one read properly.? I TRIED IT FOR MYSELF AND I WASNT COMFORTABLE WITH IT.. the bike handling definitely became a more wild than i was comfortable with🤷🏼♂️.. “i feel like im taking crazy pills.!”🤦♂️ Link to comment Share on other sites More sharing options...
Bike Dewing Posted yesterday at 08:12 AM Share 53 minutes ago, SSCC said: It really depends on the bike. Many modern geo gravel bikes come with 70 or 80mm stems. The bike bike radar voted as best road bike a year or two ago comes with an 80mm stem in a size large. Head tube angle, reach, fork off set all play a role. Gravel terrain maybe a twitchier front end can be beneficial for navigating tougher more technical sections.. that would make sense to me.. buuut im not that confident enough at my skill level.. got the 80 stem in the cupboard.. maybe again one day🤦♂️🤣 Link to comment Share on other sites More sharing options...
J Wakefield Posted yesterday at 08:16 AM Share 6 minutes ago, Bike Dewing said: Does no one read properly.? I TRIED IT FOR MYSELF AND I WASNT COMFORTABLE WITH IT.. the bike handling definitely became a more wild than i was comfortable with🤷🏼♂️.. “i feel like im taking crazy pills.!”🤦♂️ Yes I dont think they do, they seem to read to read not read to understand like you have here. I would suggest looking at changing meds from crazy pills to Ritalin cause all I said as a general is not suggesting listening to BFJ. Unreal. Link to comment Share on other sites More sharing options...
Chadvdw67 Posted yesterday at 09:11 AM Share 1 hour ago, J Wakefield said: I wouldnt go on much of anything Bike fitter James suggests in general. Maybe the battery he uses in his drill but thats about it Could you elaborate on why? A lot of what he says makes sense to a pleb like me, but maybe that is just because I "want" it to make sense? Bike Dewing and DieselnDust 2 Link to comment Share on other sites More sharing options...
Bike Dewing Posted yesterday at 09:50 AM Share 1 hour ago, J Wakefield said: Yes I dont think they do, they seem to read to read not read to understand like you have here. I would suggest looking at changing meds from crazy pills to Ritalin cause all I said as a general is not suggesting listening to BFJ. Unreal. But in this instance i feel he was correct.. as i tried it.. otherwise i wouldnt have said anything🤷🏼♂️.. why do you disregard what he says.? i found him to be correct there, and i share his love of Lake.. very good shoe maker.. do you go by Dr J Wakefield.? it feels like haters will hate on this one🤣🤣🤣 Edited yesterday at 09:51 AM by Bike Dewing Link to comment Share on other sites More sharing options...
droo Posted yesterday at 10:30 AM Share 37 minutes ago, Bike Dewing said: But in this instance i feel he was correct.. as i tried it.. otherwise i wouldnt have said anything🤷🏼♂️.. why do you disregard what he says.? i found him to be correct there, and i share his love of Lake.. very good shoe maker.. do you go by Dr J Wakefield.? it feels like haters will hate on this one🤣🤣🤣 I feel you don't know who you're talking to here. Not everyone on Bikehub is an armchair expert, some have real world experience too. You're working off a sample size of one, I guarantee you that John has a few more reference points. SSCC and Bike Dewing 2 Link to comment Share on other sites More sharing options...
The Ouzo Posted yesterday at 10:32 AM Share 2 hours ago, Bike Dewing said: Does no one read properly.? I TRIED IT FOR MYSELF AND I WASNT COMFORTABLE WITH IT.. the bike handling definitely became a more wild than i was comfortable with🤷🏼♂️.. “i feel like im taking crazy pills.!”🤦♂️ I think it is as what was said above, depends on teh bike geometry. I went from 110mm to 80mm stem and at the same time went from 440mm to 420mm bars on my road bike I cant say I feel the twitchiness you describe. Bike Dewing 1 Link to comment Share on other sites More sharing options...
Bike Dewing Posted yesterday at 10:43 AM Share 13 minutes ago, droo said: I feel you don't know who you're talking to here. Not everyone on Bikehub is an armchair expert, some have real world experience too. You're working off a sample size of one, I guarantee you that John has a few more reference points. I have no idea who he is.. and until he defends his claim that james the bike fitter is rubbish i dont really care who he is.. tell me why.. and we can talk🤷🏼♂️ other than that i am just sharing my experience Edited yesterday at 10:44 AM by Bike Dewing Chadvdw67 1 Link to comment Share on other sites More sharing options...
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