[RBW] Re: Roadini 650b conversion
Bruce, I believe your Riv Road started with short-reach caliper brakes. The mid-reach variety thst Shimano made and Riv put on the Rambouillet didn't exist yet. Joe Bernard On Wednesday, November 17, 2021 at 8:37:06 AM UTC-8 Fullylugged wrote: > I ride a '95 Riv Road size 54.5 which is too tall for me in 700c. The long > reach Tektro/Silver calipers do work with 650B wheels and I have only > ridden it that way. It will take 38mm tires w/o fenders. I know Joe said > it won't help your Roadini, but if you can borrow a caliper and do a test > fit, I would. 170 arms are not too long and the bike rides great. YMMV. > > Bruce > > On Wednesday, November 17, 2021 at 10:22:33 AM UTC-6 RichS wrote: > >> Kushan: >> >> Keep in mind the bottom bracket will be lower so the likelihood of pedal >> strike will be present when you lean the bike into a turn. Pedal selection >> plays a part too; shorter cranks (165 / 160) would be a consideration to >> help reduce pedal strike. This was my experience with a mid-80s Trek I >> converted from 700 to 650b. Ultimately the bike felt better with the 700 >> wheel size. Good luck with your experiment if you pursue it. >> >> Best, >> Rich in ATL >> >> On Wednesday, November 17, 2021 at 1:39:57 AM UTC-5 Kushan wrote: >> >>> Hi all - >>> >>> I currently own a 2020 Roadini (61 cm) with 38 mm slick tires. I have >>> tried 32 mm and 35 mm in past but find 38 mm perfect in terms of comfort >>> vs. speed trade off. I am planning to move to the land of daily rain >>> (Seattle!!) in a near future and have been told that permanent fenders are >>> a must have for getting any real use out of the bike. >>> >>> The problem is that I don't want to use 32 mm tires (which is the >>> advertised max clearance with fenders) for this frame. I am contemplating >>> if conversion to 650b wheels will give me sufficient clearance for 38 mm >>> tires with fender (smaller frame 650b Roadinis are known to clear upto 42 >>> mm). >>> >>> My questions to the group are: >>> - Is this even an option or would the chain/seat stays and fork will >>> simply not cover this much tire + fenders? >>> - Based on Rivendell 650b conversion guide, the conversion should be >>> straightforward by switching to long reach caliper brakes and bottom >>> bracket will have sufficient clearance for 170 mm cranks. However, I wanted >>> to see if anyone has attempted this conversion before and what their >>> experience was. >>> >>> Best >>> Kushan >>> >> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/74725c7d-dbbf-45ed-93ed-cae3bf679fa8n%40googlegroups.com.
[RBW] Re: Roadini 650b conversion
I ride a '95 Riv Road size 54.5 which is too tall for me in 700c. The long reach Tektro/Silver calipers do work with 650B wheels and I have only ridden it that way. It will take 38mm tires w/o fenders. I know Joe said it won't help your Roadini, but if you can borrow a caliper and do a test fit, I would. 170 arms are not too long and the bike rides great. YMMV. Bruce On Wednesday, November 17, 2021 at 10:22:33 AM UTC-6 RichS wrote: > Kushan: > > Keep in mind the bottom bracket will be lower so the likelihood of pedal > strike will be present when you lean the bike into a turn. Pedal selection > plays a part too; shorter cranks (165 / 160) would be a consideration to > help reduce pedal strike. This was my experience with a mid-80s Trek I > converted from 700 to 650b. Ultimately the bike felt better with the 700 > wheel size. Good luck with your experiment if you pursue it. > > Best, > Rich in ATL > > On Wednesday, November 17, 2021 at 1:39:57 AM UTC-5 Kushan wrote: > >> Hi all - >> >> I currently own a 2020 Roadini (61 cm) with 38 mm slick tires. I have >> tried 32 mm and 35 mm in past but find 38 mm perfect in terms of comfort >> vs. speed trade off. I am planning to move to the land of daily rain >> (Seattle!!) in a near future and have been told that permanent fenders are >> a must have for getting any real use out of the bike. >> >> The problem is that I don't want to use 32 mm tires (which is the >> advertised max clearance with fenders) for this frame. I am contemplating >> if conversion to 650b wheels will give me sufficient clearance for 38 mm >> tires with fender (smaller frame 650b Roadinis are known to clear upto 42 >> mm). >> >> My questions to the group are: >> - Is this even an option or would the chain/seat stays and fork will >> simply not cover this much tire + fenders? >> - Based on Rivendell 650b conversion guide, the conversion should be >> straightforward by switching to long reach caliper brakes and bottom >> bracket will have sufficient clearance for 170 mm cranks. However, I wanted >> to see if anyone has attempted this conversion before and what their >> experience was. >> >> Best >> Kushan >> > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/a1b1b8f0-c215-45e8-9da4-fd3fd493d210n%40googlegroups.com.
[RBW] Re: Roadini 650b conversion
Kushan: Keep in mind the bottom bracket will be lower so the likelihood of pedal strike will be present when you lean the bike into a turn. Pedal selection plays a part too; shorter cranks (165 / 160) would be a consideration to help reduce pedal strike. This was my experience with a mid-80s Trek I converted from 700 to 650b. Ultimately the bike felt better with the 700 wheel size. Good luck with your experiment if you pursue it. Best, Rich in ATL On Wednesday, November 17, 2021 at 1:39:57 AM UTC-5 Kushan wrote: > Hi all - > > I currently own a 2020 Roadini (61 cm) with 38 mm slick tires. I have > tried 32 mm and 35 mm in past but find 38 mm perfect in terms of comfort > vs. speed trade off. I am planning to move to the land of daily rain > (Seattle!!) in a near future and have been told that permanent fenders are > a must have for getting any real use out of the bike. > > The problem is that I don't want to use 32 mm tires (which is the > advertised max clearance with fenders) for this frame. I am contemplating > if conversion to 650b wheels will give me sufficient clearance for 38 mm > tires with fender (smaller frame 650b Roadinis are known to clear upto 42 > mm). > > My questions to the group are: > - Is this even an option or would the chain/seat stays and fork will > simply not cover this much tire + fenders? > - Based on Rivendell 650b conversion guide, the conversion should be > straightforward by switching to long reach caliper brakes and bottom > bracket will have sufficient clearance for 170 mm cranks. However, I wanted > to see if anyone has attempted this conversion before and what their > experience was. > > Best > Kushan > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/c06f8a2e-2226-4b28-b3ed-ea7bdee6e501n%40googlegroups.com.
[RBW] Re: Roadini 650b conversion
The first problem you'll run into involves a bit of history: When Grant started messing about with trying to put fatter tires on 700c road bikes all he had available in caliper brakes was short-reach, approximately 40-50mm depending on manufacturer (I think some were a smidge longer, maybe 52). This wasn't helpful so he talked Shimano into making a 47-57 reach brake, which is the size that works on Rambouillet, Romulus and Roadini. Later he reintroduced 650b to the US and got Tektro to make a 55-73 caliper to make lots of room on his new 650b Saluki frame. This also created a market for replacing those old short-reach brakes and 700c wheels on '80s-'90s road bikes with the Tektro R559 brake and 650b wheels. SO. Your frame already has 47-57 mid-reach brakes and clearance for fattish 700c tires, adding R559 isn't going to reach far enough to hit a 650b rim. BUT. My understanding is center-pull brakes like Paul and Dia-Compe have enough reach to work, so your project is (probably) doable if you're ok with adding brake hangers. The easy sidepull caliper swap won't work. Joe "this all makes sense in my head somehow" Bernard On Tuesday, November 16, 2021 at 10:39:57 PM UTC-8 Kushan wrote: > Hi all - > > I currently own a 2020 Roadini (61 cm) with 38 mm slick tires. I have > tried 32 mm and 35 mm in past but find 38 mm perfect in terms of comfort > vs. speed trade off. I am planning to move to the land of daily rain > (Seattle!!) in a near future and have been told that permanent fenders are > a must have for getting any real use out of the bike. > > The problem is that I don't want to use 32 mm tires (which is the > advertised max clearance with fenders) for this frame. I am contemplating > if conversion to 650b wheels will give me sufficient clearance for 38 mm > tires with fender (smaller frame 650b Roadinis are known to clear upto 42 > mm). > > My questions to the group are: > - Is this even an option or would the chain/seat stays and fork will > simply not cover this much tire + fenders? > - Based on Rivendell 650b conversion guide, the conversion should be > straightforward by switching to long reach caliper brakes and bottom > bracket will have sufficient clearance for 170 mm cranks. However, I wanted > to see if anyone has attempted this conversion before and what their > experience was. > > Best > Kushan > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/21363604-837d-4244-8ae0-9dcfcc83d21bn%40googlegroups.com.
