# Framebuildin' **URL:** \ **Category:** Bikes\ **Created:** [September 19, 2018, 12:23pm UTC](https://tarck.cc/t/framebuildin/21941 "2018-09-19T12:23:24Z")\ **Posts on this page:** 20\ **Page:** 24
**Author:** ![viggen](https://static.tarck.cc/user_avatar/tarck.cc/viggen/32/711_2.png) [@viggen](https://tarck.cc/u/viggen)\ **Post date:** [June 13, 2019, 12:53am UTC](https://tarck.cc/t/framebuildin/21941/463 "2019-06-13T00:53:25Z")
I mean what in the actual hell is wrong with threaded BSA 68mm shells?!? Takes both 24 and 30 mmm axles, dead simple, tried and tested, great for dead enders (#squaretaperlyfe), easy to fit UNBB54 (praise be spinning holy mother of tarck) etc mm and so on. ---
**Author:** ![cousinmosquito](https://static.tarck.cc/user_avatar/tarck.cc/cousinmosquito/32/105410_2.png) [@cousinmosquito](https://tarck.cc/u/cousinmosquito)\ **Post date:** [June 13, 2019, 1:01am UTC](https://tarck.cc/t/framebuildin/21941/464 "2019-06-13T01:01:30Z")
Im the biggest luddite there is. Only 2 of my 11 bikes are not BSA. Dude said that it meant better clearance for tires. I was trying to understand how. A wider shell I guess?I like wide if it means I can do fatter tires. ---
**Author:** ![Face](https://static.tarck.cc/user_avatar/tarck.cc/face/32/77523_2.png) [@Face](https://tarck.cc/u/Face)\ **Post date:** [June 13, 2019, 1:01am UTC](https://tarck.cc/t/framebuildin/21941/465 "2019-06-13T01:01:36Z")
T47 is threaded, just bigger so the bearings are inboard instead of outboard, IIRC. I think the better clearance comes from being able to attach chainstays where your cups would be on a BSA. ---
**Author:** ![Orc](https://static.tarck.cc/user_avatar/tarck.cc/orc/32/2244_2.png) [@Orc](https://tarck.cc/u/Orc)\ **Post date:** [June 13, 2019, 1:07am UTC](https://tarck.cc/t/framebuildin/21941/466 "2019-06-13T01:07:27Z")
If it does you can use it as a mobile! ---
**Author:** ![adem](https://static.tarck.cc/user_avatar/tarck.cc/adem/32/2176_2.png) [@adem](https://tarck.cc/u/adem)\ **Post date:** [June 13, 2019, 1:11am UTC](https://tarck.cc/t/framebuildin/21941/467 "2019-06-13T01:11:10Z")
this is it in a nutshell. Really only matters if you’re into that big tire/short chainstay life. ---
**Author:** ![viggen](https://static.tarck.cc/user_avatar/tarck.cc/viggen/32/711_2.png) [@viggen](https://tarck.cc/u/viggen)\ **Post date:** [June 13, 2019, 1:17am UTC](https://tarck.cc/t/framebuildin/21941/468 "2019-06-13T01:17:40Z")
How big tyres do you want to run, like above 2.4 mtb tyres and over? Or around that 2.0/50mm? That can easily be done without tube-fuckery. Also 700C or 650B? T47 seems pretty expensive right now, with only Chris king and Praxis doing BB’s. Even though it’s been around since -15. BSA is just so great and idiot proof, all my bikes have them. MTB’s on 73mm shells and they can fit up to 2.8 tyres, just do that if you want the space. Since you don’t care about q-factor anyway. EDIT: @adem: my staton switchback is 73BSA with 415mm cs and can fit 2.8 tyres, so not that true… ---
**Author:** ![cousinmosquito](https://static.tarck.cc/user_avatar/tarck.cc/cousinmosquito/32/105410_2.png) [@cousinmosquito](https://tarck.cc/u/cousinmosquito)\ **Post date:** [June 13, 2019, 1:21am UTC](https://tarck.cc/t/framebuildin/21941/469 "2019-06-13T01:21:19Z")
I was thinking 44mm in 700 and around 2 inch in 650b with compact road-ish cranks. Nothing too silly. ---
**Author:** ![viggen](https://static.tarck.cc/user_avatar/tarck.cc/viggen/32/711_2.png) [@viggen](https://tarck.cc/u/viggen)\ **Post date:** [June 13, 2019, 1:22am UTC](https://tarck.cc/t/framebuildin/21941/470 "2019-06-13T01:22:44Z")
I don’t see the point, maybe _framebuilder™_ wants to flex? Weird flex… ---
**Author:** ![sparksflyhigh](https://static.tarck.cc/user_avatar/tarck.cc/sparksflyhigh/32/661_2.png) [@sparksflyhigh](https://tarck.cc/u/sparksflyhigh)\ **Post date:** [June 13, 2019, 2:16am UTC](https://tarck.cc/t/framebuildin/21941/471 "2019-06-13T02:16:11Z")
> [@cousinmosquito](#): > > Dude said that it meant better clearance for tires I wouldn’t pay someone who says such things to build a frame ---
**Author:** ![drwelby](https://static.tarck.cc/user_avatar/tarck.cc/drwelby/32/142_2.png) [@drwelby](https://tarck.cc/u/drwelby)\ **Post date:** [June 13, 2019, 2:24am UTC](https://tarck.cc/t/framebuildin/21941/472 "2019-06-13T02:24:49Z")
It might make it _easier_ to get a given clearance, but it doesn’t give you more clearance. ---
**Author:** ![anon24974279](https://static.tarck.cc/letter_avatar_proxy/v4/letter/a/a5b964/32.png) [@anon24974279](https://tarck.cc/u/anon24974279)\ **Post date:** [June 13, 2019, 2:25am UTC](https://tarck.cc/t/framebuildin/21941/473 "2019-06-13T02:25:50Z")
Tire clearance isnt given, it is earned ---
**Author:** ![EndpointBraden](https://static.tarck.cc/user_avatar/tarck.cc/endpointbraden/32/22101_2.png) [@EndpointBraden](https://tarck.cc/u/EndpointBraden)\ **Post date:** [June 13, 2019, 2:33am UTC](https://tarck.cc/t/framebuildin/21941/474 "2019-06-13T02:33:41Z")
T47 is still a 68mm shell. Nothing about tire clearance really is at play here. I suppose you could cut threads into a 86mm wide tube and make a T47/BB386 hybrid system but that seems silly. Maybe he just has some crazy 3OS down tube he wants to use? I encountered that with some Indy Fab projects. There was some big/thin Reynolds down tube that was designed to be used on PF30 shells. ---
**Author:** ![cousinmosquito](https://static.tarck.cc/user_avatar/tarck.cc/cousinmosquito/32/105410_2.png) [@cousinmosquito](https://tarck.cc/u/cousinmosquito)\ **Post date:** [June 13, 2019, 2:39am UTC](https://tarck.cc/t/framebuildin/21941/475 "2019-06-13T02:39:46Z")
> [@drwelby](#): > > It might make it _easier_ to get a given clearance, but it doesn’t give you more clearance. Thats what I was wondering. ---
**Author:** ![cousinmosquito](https://static.tarck.cc/user_avatar/tarck.cc/cousinmosquito/32/105410_2.png) [@cousinmosquito](https://tarck.cc/u/cousinmosquito)\ **Post date:** [June 13, 2019, 2:44am UTC](https://tarck.cc/t/framebuildin/21941/476 "2019-06-13T02:44:05Z")
Yep, that’s what he said. 86.5 mm wide. ---
**Author:** ![EndpointBraden](https://static.tarck.cc/user_avatar/tarck.cc/endpointbraden/32/22101_2.png) [@EndpointBraden](https://tarck.cc/u/EndpointBraden)\ **Post date:** [June 13, 2019, 2:50am UTC](https://tarck.cc/t/framebuildin/21941/477 "2019-06-13T02:50:34Z")
That’s kindof cool. Utterly unnecessary for the crank/tire dimensions you’re looking for. Bonus: Chris King shit-canned their 24mm spindle bb for that shell size. Wheels MFG makes one, but it’s north of $100. The seals on those are super underwhelming too. If you’re using a 30mm spindle crank, I suppose it’s not the MOST terrible way to do it. Sounds like at the best case you’re dealing with short service intervals on an expensive part and at the worst a dead-end standard. ---
**Author:** ![cousinmosquito](https://static.tarck.cc/user_avatar/tarck.cc/cousinmosquito/32/105410_2.png) [@cousinmosquito](https://tarck.cc/u/cousinmosquito)\ **Post date:** [June 13, 2019, 2:58am UTC](https://tarck.cc/t/framebuildin/21941/478 "2019-06-13T02:58:03Z")
Thanks for that. I am not about making my life unduly difficult or expensive. This will be the only bike I ever get built. I could be convinced to go wider with my tire expectations though. Starting to realise that I need to think about cranks etc. I have nothing so far.This is not going to be my usual parts-bin shitter. ---
**Author:** ![drwelby](https://static.tarck.cc/user_avatar/tarck.cc/drwelby/32/142_2.png) [@drwelby](https://tarck.cc/u/drwelby)\ **Post date:** [June 13, 2019, 3:20am UTC](https://tarck.cc/t/framebuildin/21941/479 "2019-06-13T03:20:37Z")
> [@EndpointBraden](#): > > T47 is still a 68mm shell Oh, I thought they were wider. That makes them _harder_ to fit wide tires then. ---
**Author:** ![EndpointBraden](https://static.tarck.cc/user_avatar/tarck.cc/endpointbraden/32/22101_2.png) [@EndpointBraden](https://tarck.cc/u/EndpointBraden)\ **Post date:** [June 13, 2019, 3:23am UTC](https://tarck.cc/t/framebuildin/21941/480 "2019-06-13T03:23:56Z")
I was sort of wrong. There is a rare 86 variant with even rarer bottom bracket options. ---
**Author:** ![drwelby](https://static.tarck.cc/user_avatar/tarck.cc/drwelby/32/142_2.png) [@drwelby](https://tarck.cc/u/drwelby)\ **Post date:** [June 13, 2019, 3:27am UTC](https://tarck.cc/t/framebuildin/21941/481 "2019-06-13T03:27:20Z")
Maybe that’s the one I saw and then decided I didn’t need to ever do any further investigation. ---
**Author:** ![Straws](https://static.tarck.cc/user_avatar/tarck.cc/straws/32/147_2.png) [@Straws](https://tarck.cc/u/Straws)\ **Post date:** [June 14, 2019, 12:51am UTC](https://tarck.cc/t/framebuildin/21941/482 "2019-06-14T00:51:49Z")
I’m having a hard time finding some stem binders that I want. I found a 28.6 post binder that I could definitely use for my stem but it’s dumb expensive and doesn’t perfectly match the 25.4 that my stem tubes are going to be. There’s this one, also for seattubes, that I think I could ream out a recess for a caphead bolt. [https://www.cycle-frames.com/bicycle-frame-tubing/MTB-BINDER-BOSS-FOR-QUICK-RELEASE.html](https://www.cycle-frames.com/bicycle-frame-tubing/MTB-BINDER-BOSS-FOR-QUICK-RELEASE.html) This is the 28.6 post but like I said, $$$ > **[Braze-on seat binder for 28.6 seat tube](https://framebuildersupply.com/products/braze-on-seat-binder-for-28-6-seat-tube?variant=16215474700399)** > > Braze-on seat binder for 28.6 seat tube This is more what I’m looking for but 31.7 too much of a differnce to fudge with. > **[Binder - Made in USA - with M6 bolt - 22.2mm length](https://framebuildersupply.com/collections/seat-collars/products/seat-binder-made-in-usa-with-m6-bolt-22-2mm-length)** > > Seat binder with bolt - 28mm length. Mitered for 31.7 on one side and just under 25.4 on the other. Steel. or should I just get some bar stock and ream/tap my own? [Previous page](https://tarck.cc/t/framebuildin/21941.md?page=23) [Next page](https://tarck.cc/t/framebuildin/21941.md?page=25)