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Re: Mountain bike idiot wants to build a cyclocross bike I'd recommend clearance for tire widths to be a few mm wider than your intended tire size. Gives you some room to mount at least fenders plus better mud clearance... even if you don't need them.

Rims, 20-21mm inner is sufficient. I have 2.25 slapped on my DT Swiss XR331 (i20) with no problems.

For my Waltly gravel bike, I had them put racks & fender mounts as I see myself doing some bikepacking. You might consider it if you want.

If you're gonna be on paved road most of the time, perhaps a rigid carbon fork might be more useful. With weight saving bonus.

December 24, 2020, 10:31:00 PM
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Re: 2021 NEW Carbon frame 29er suspension mountain BSA XC MTB travel 100mm FM027 Ordered on 11/17/2020 on Ebay  arrived today 01/19/21 , via UPS.  Packaged very well, including rear axle and headset.  Will unwrap tonight.  Frame came with bottom spacers to run old style shock so will see if that works rather than purchasing a 165X40mm trunnion shock. 
January 19, 2021, 05:10:10 PM
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Re: ZTTO 54T Star Rachet upgrade kit for DT Swiss hubs Finally got a thousand kilometers (1,015km to be exact) on the ZTTO DT Swiss Star Rachet 54T upgrade kit. Took me longer as it had been raining the past couple of weeks and cutting my rides few & short. Anyway here's the results.

As you can see from the picture, the outer edges of the ratchet showed some wear. You can see the color changed from silver to bronze. For comparison, refer to pictures on the original post, the 18T rachet had seen pretty much close to a thousand kilometers as well before the upgrade. The springs are pretty much unaffected. Performance is still very good and unaffected by the wear.

Is it worth the US$32.60? To be honest, I've never seen a used original DT Swiss 54T Star Rachet to make that answer. And judging from the wear, I'm probably going to get a few more thousand kilometers from it. But at that price, you can probably get 3 upgrade kits as compared to only 1 from DT Swiss. So I'll leave the decision to you.

So there it is. The thousand-kilometers review of the ZTTO DT Swiss 54T Star Rachet upgrade kit.

January 25, 2021, 07:03:26 PM
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Re: Chinese Frame hardtail ht 67-69' Salve preso a ottobre su Aliexpress.
February 04, 2021, 09:58:47 AM
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Re: Chinese SC/AM831 Group Buy Had a chat with Jenny this morning.

Lead time quoted as 60-70 days.

She said cost of carbon gone up so USD 550 for 30. USD499 for 50.

Shipping to individual group buy member. Shipping would be in top.

Pantone colours available but cost on top.

Payment - this is where it may fall down. Because they don't know how many will actually order they want one payment.

Payment would be made through Alibaba. I'll need to check things like protection etc.

I'm in UK so USD550 is £400. That's £12000 before shipping and paint. I could buy 10 of small, medium, large and have shipped to me but then costs on top to ship to members.

This would be unpainted as they'd be on a first come first served basis. Also, I'm not taking responsibility if the frame has a defect. Going down the route of taking on responsibility, I'd have to sell close to individual price to cover frame issues/delivery issues. Probably closer to £600 each plus shipping unpainted. Yes, I'd make on them but the whole thing is likely to be a massive ball ache  :)

I don't mind arranging and taking payments off individuals. Can do colours then. You'd get all my contact details and anything else that might be needed to track me down if I take all your money and buy a speed boat or something. That risk is up to you. But I'll collect, pay and arrange shipping etc if that is what everyone wants.

Said I'd go back to her next 7-10 days. Thoughts?


March 02, 2021, 01:03:59 AM
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Softail titanium MTB 29/27.5+ (all mountain - bikepacking) Hello,


Who I am :
Just over 30 yo MTB rider, 177cm tall, 65 kg, I live in the French Alps.
I practiced XC, trial and dirt as a kid. I did practice pure enduro around 25 yo, but now I don't want to ride that hard anymore  :o
I mostly ride all mountain and bikepacking MTB trips. I want to climb hard, enjoy views/landscapes, have fun while downhill  8)

Few weeks ago, I had a Specialized Enduro + Orbea Alma + NS Bikes Eccentric + road bike + pumptrack bike + a titanium custom hardtail MTB with Pinion gearbox (commute / travel).


The project
Sell all my bikes except the Pinion bike, and build a new all mountain / bikepacking MTB.
I wanted :
  • light bike
  • pretty "cheap"
  • a bit of rear travel but not as much as the Specialized Enduro
  • careless suspension
  • aggressive / modern geometry
  • enough room to mount DIY bikepacking gears, espacially a framebag

I thought that a "down country" bike would be a solution. Carbonda FM936.  :-*
Then i changed my mind for a pure all mountain FM1001.
Then I hesitated for a 160mm FS947.
Then an AM831 (SC hightower like).
Every of them have pros and cons and the cons won every time...

Then I thought a custom titanium hartdail with 180mm front fork (based on Chromag Doctahawk), would probably be amazing.
But still no rear travel...

I finally make a decision and decided to order a custom softail titanium bike.
Asked walty, xacd and titan products. Titan is the one I chose.


Geometry
Here is the geometry.
160mm fork, 80mm rear travel.
Massive 505mm reach and 77° STA 63° HTA 430 chainstay (63° seems crazy but it is almost a hardtail, HTA should be around 64,5 once sagged).
20mm stem (integrated bar)
Compatible max 29x2.5 and 27.5x3.0.




Parts
Here is the detail bike check (almost everything is already at home)
Goal : 11,5 kg maximum. Fingers crossed...




Frame pictures
The frame just left the factory for shipping.






Next steps : wait, mount and test-ride  8) ;D

April 22, 2021, 07:46:35 AM
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Re: Waltly Ti gravel - dropped seatstay and fat tubes - in progress This guy is saying pink is a different process: http://www.torontocycles.com/Titanium_Anodizing.html
He's also explained why the purple color I had was more likely to have these color variations in it:

Quote
Pink vs. Purple Titanium Anodizing:
There is some discrepancy on Pink and Purple Colors. Purple is quite dark and when wet can look brown, which is the color with the lower voltage. Purple can also be difficult to make because it's a
narrow voltage band. A few volts less and it's brown. A few more and its blue. Dark Purple also smears and isn't the best color.
Pink is a high voltage color and is also a different process. It's not true pink and some customers will say its purple. This is not the case. In the store pink is also lavender.

From this video it appears to be down to surface finish/roughness, in this case only one surface looks pink:


edit: the ~20V level is really easy to buff out, once you get up to over 60V the colors are a lot more tough and need to be sanded off. Its expected as the layer thickness is higher, but, its more than you'd expect. Was able to get a really dark pink but only on the weld bead.

May 06, 2021, 02:35:31 PM
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Re: My Waltly Ti frame #2 (29er) So I took her out to some bikepacking trips.
May 09, 2021, 01:08:28 AM
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Re: Small 26" or 27.5" Hardtail Frame bottlecage has been mounted

drilled two holes in the frame using a self-built template

inserting a rivert nut and tighten it with a self-built tool using a screw and a screw nut

worked very well

May 12, 2021, 01:51:17 AM
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Re: Softail titanium MTB 29/27.5+ (all mountain - bikepacking) Frame received.
2 483g with sliding dropouts. +150g than I expected but it is a detail.


With 6mm titanium plate, it is flexy and should be strong enough. Let's see it in video :
https://streamable.com/8b3jam

Let's the build start !

May 17, 2021, 03:04:50 AM
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