Inpd

Hi,

I'm about to push the button and order all my parts for building up my Venturi Breezer from the frameset (see 2012 Breezer Venturi Frameset Blue/White | Bikewagon)

Wheels - Campy Khashims Asymmetric 11-Speed Shimano (https://www.merlincycles.com/campagn...et-76084.html0

Group set 105 in Silver with Clamp on FD of size 31.9mm (circumference of seat tube is 100mm). (see Shimano 105 (5800) Silver 11 Spd Double Groupset at Ribble Cycles) Given these are sold as a groupset I guess they all will work together for any bike or is that too simplistic.

This is where I need help. The above comes with a English Threaded BB, But my bike has a BB86. If I buy this BB (New 2016 Shimano SM BB72 41 Press Fit Bottom Bracket 86 5mm BB Cups | eBay) will it work with the 105 groupset above?

I think those are the critical points for my build. The seat, stem, handlebars etc I can choose later right?


Thanks!

Tim_Iowa

??? the link you provided says the Breezer Venturi has a 28.6 seat tube. But, you can use a 31.9 FD clamp, you just need to add a shim (commonly available)

This forum seems to recommend the BB71 for the 5800 crank in a BB86 frame. I don't know what the differences are between the BB71 and the BB72 you listed, sorry.
You may also need crank spacers for the 5800 crank in that BB, because the crank intended for the screw-in external-cup BB may not include them (the external cups act as spacers).

I'd contact Ribble and see if they could exchange the BB-60 for the BB-71. They speak English, after all.

dr_lha

I believe that the Shimano FDs should come with those shims, although they may be missing from OEM parts. Personally I prefer to use a braze-on FD with the correct sized adapter, not a big fan of shims.
Either BB71 or BB72 will work, as long as you get the Road version.

dsbrantjr

I am not especially fond of them either but these work well and allow a single SKU to fit 3 different tube sizes. The Shimano FD shims "lock" very nicely into the clamp and IME are indistinguishable from using the clamp alone. They are not just plain metal shims they are purpose-made (die cast) for the application.

dtrain

Ribble also sells the press fit BB (71) - for less than that ebay link. I'm not sure why they don't show that option when creating a groupset. But with a quick e-mail, there's a chance they could swap it in for a small price difference.

You'd want the "clip-on 28.6/31.8" FD, which appears to be out-of-stock. Very little of the 'black' version is actually black - so that might be an option there. Or the braze-on adapter that others are suggesting (for 28.6).

Best wishes on the project - sounds fun.

shelbyfv

Ribble is a great source for groupsets and the silver 105 is really attractive. A friend put it on a refurbed Waterford and it does not look at all out of place. Good choice!

Inpd

Thanks @Timiowa. The tubes are hydro formed so the seat clamp reported is different size to where the FD clamps on.

also thanks for confirming the BB86 will work.

Yiu guys are great (probably too great and inspire false sense of ability in me ..) so I have a few more question.

That RD in that grupo should install on my bike fine with a replaceable hanger right? What hanger do I get?

All other installation points on a bike are constants and the grupo should work? Points such as brake mounts etc.

shelbyfv

The pic shows the frame with a hanger. That is the way frames generally are sold as hangers come in a variety of configurations. The 28.6 FD clamp is pretty much standard for steel frames. When you order your groupset be sure you order regular as opposed to direct mount brakes.

ptempel

Might not hurt to order an extra rear derailleur hanger from Breezer if available. Will cover you if you crash on the right side and bend the existing hanger. May not need it for years. But you'll be glad when you do.

dtrain

I doubt the Breezer has a replaceable hanger. Most steel frames do not.

dr_lha

You are correct, it does not. Thankfully steel hangers can be bent back.

Tim_Iowa

That may be so, but the Breezer page you linked to says very clearly that the FD clamp size is 28.6. Not sure why you're talking about the seat clamp (which is included in with the frame), I'm not confusing it with the FD clamp.

Ribble lists the clamp-on FD as 28.6/31.8, so it's probably a 31.8 with a shim anyway.

Yup. The caliper brakes included are the correct reach and mounting style for this relatively standard road frame.

The only other choice to make is what cassette you want. Get the mid-cage (GS) rear derailleur if you want to use an 11-32 cassette. The short-cage (SS) RD fits up to an 11-28 cassette.

Inpd

Thanks. Some models do have a hanger, mine does .

So how do I know the 5800 RD will fit my frame's hanger or is it a standard spec. Also, I understand it can be bent back, but can/should I install one anyway?

dr_lha

Install one anyway? No, you can't it's built in and non-replaceable.

dtrain

I'm confused by the question. Hangers are pretty much standard. 99.9% chance it works with 5800. Most steel frames have an integrated/built-in hanger formed with the same material as the chain stays and seat stays. Those aren't replaceable...and you don't install another one. In the off chance that your frame has no hanger at all, you need to be in touch with Breezer.

(edit: dr_lha beat me to it.)

Inpd

Thanks @dtrain and thanks @dr_lha (oh by the way this is a large frame (size 54cm but TT 57cm).

My version (2013 model) does have a hanger. As to why should I want to install a replaceable hanger on a steel bike, this is claimed not to be regular mendable Chromoly by Breezer, its supposed to be super hard/rigid to ensure maximum power transfer blah blah blah marketing drivel which made me question how bendable it is.

Anyway, I contacted Breezer and asked them how bendable the hanger is. Once I'll hear back from them I'll pull the trigger and then the fun and games will begin!

dr_lha

LOL. Whatever they made the tubes out of, you can guess that they made the dropouts out of the same stuff as everyone else makes dropouts out of. If it breaks you're SOL I'm afraid. I wouldn't worry about it too much though.

EDIT: BTW I'd be *very* surprised if any of the Venturi's had replaceable hangers, given that if one thing that Breezer is known for, it's hooded dropouts, which are utilized by many steel frame manufacturers. e.g.:

https://surlybikes.com/blog/post/i_kn...ot_of_dropouts

dtrain

I'm not sure the 'built-in' concept is sinking in. It doesn't really matter how bendable the hanger is - it's part of the frame and not replaceable. You cannot install a different one, but what you have will be fine.

dr_lha

Yeah, my "bendable" comment was just meant to say that if you bend it, you can bend it back, which is something you wouldn't be able to do so easily with an aluminum frame that had a built in hanger (if such a thing exists).

shelbyfv

If you enlarge the pic in the link, you can see that it is an integrated hanger (and Breezer dropouts.) No need to be concerned about it.