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Topics - bxcc

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1
29er / Spcycle M016 hardtail frame builds
« on: February 26, 2023, 11:44:42 AM »
I’ve got a couple builds to do this spring and decided on some Spcycle M016 frames. The top tube measurement seems a bit short but the stack and reach numbers look acceptable. The 67° head angle and the <440mm chainstay length should be a good mix for what I’m looking for.

Frame 1 is for me and is a 19” large in gloss pearl white. This will be replacing a Waltly titanium frame that I can’t get the seat post to stop creaking on. It’s unfortunate as I absolutely love the frame but I just can’t get past the creaking. It will be built up as a single speed and I hope to get it under 20 pounds. SRAM X0 cranks, Hulk bike rims with 27mm inner width, 350 hubs, Divine SL dropper, XTR Race brakes, and a Pike Ultimate will start the build. Depending on ride and final weight, I might for a SID Ultimate.

Frame 2 is for my daughter. It’s a 17” medium frame that’s painted matte black and matte pink. This will have a 2017 RS Revelation RLC fork set at 120mm and an 11 speed drivetrain that’s a mix of SLX and Deore. She grew out of her current 27.5 small frame so I’ll be taking most of the parts from that minus the obvious 29” wheel specific items.

I ordered the frames on February 19th and was told the frames would be painted on the 21st. So far, no more updates. To be honest though, I haven’t asked for any. I’ll update the thread as things move along.

Purchase / shipping timeline:
19 February - Ordered two painted frames
3 March - received tracking number
7 March - FedEx received the package and frames are in transit.
10 March - Frames delivered

2
Component Deals & Selection / Flared gravel drop bars
« on: March 30, 2021, 09:38:22 AM »
Does anyone have any recommendations on flared drop bars? Something similar to the Salsa Cowchipper would be preferred. I'd prefer something from a trusted seller as I'm still hesitant on generic carbon bars.

Drop: > 120mm
Reach: > 80mm
Flare: between 20 and 30 degrees

I did find this one with some decent reviews but I'm not a fan of the Di2 holes. They may be a non-issue but I see them as weak points.
https://www.aliexpress.com/item/4000987256782.html?spm=a2g0o.cart.0.0.58083c00nB42PF&mp=1

Here's the Salsa Cowchipper for reference:
https://salsacycles.com/components/category/road_handlebars/cowchipper

3
Metal Frames / Waltly Ti gravel bike build
« on: March 19, 2021, 04:29:32 PM »
Wanted to start a build thread for the new frame I have coming. I've been working with Amy from Waltly for the past month or so working out the frame details. Some of my thoughts they couldn't do and I've changed my mind on a few so it's been a process. Amy's communication and patience has been excellent through the whole process and I would gladly use them a third time.

This is my first drop bar bike so I wasn't sure what I was looking for. This will be roughly 45% smooth gravel roads, 45% pavement, and 10% single track. I've built probably a dozen mountain bikes from the frame up over the years and I'm pretty comfortable picking mounting bike geometry for my riding style and location. But drop bar bikes are new and I wasn't sure where to start. I demo'd a 56cm and a 58cm Otso Warakin from the LBS and settled on something in the 56cm range. I also tried the Salsa Vaya and like that quite a bit as well. I tried to mirror the geo of the 56cm Warakin with some Vaya geo mixed in. So on with the details.

Frame:
Twin top tube design
45mm tire clearance
30.9 seat post with internal dropper routing
12x142 rear with flat mount brake
ZS44 top, ZS56 bottom
Internal routing wherever practical

Fork:
Waltly FK-F06 carbon fork with fender and cargo mounts

Drivetrain:
Shimano GRX 810 1x shifters, left side dropper lever
Sram Force 1 GXP carbon crank, 172.5 with 42t ring
Sram 1150 10-42 cassette
GRX 812 rear derailleur
XTR MT900 rotors 160mm front and rear
YBN Hollow plate 11 speed chain

Cockpit:
Salsa Cowchipper Deluxe 44cm bars
Zipp Service Course SL stem 80mm 6 degree
BikeYoke Revive 125mm dropper
SQlab 611 Ergowave Carbon Saddle
Cane Creek Slamset, pink limited edition

Wheels:
Nextie 22mm inner 23mm deep carbon rims
DT Swiss 350 28h centerlock hubs
DT Swiss Aerolite spokes, white
Alloy double head nipples, pink
WTB Venture 700x40 120tpi tires

I just gave the final approval of the frame design so it will be 6 to 8 weeks before it's complete. I hope to be riding it before June.





**Edited to update component list**

4
So who wants to school me in the ways of CX bikes? That's the short version. Now on to the long version.....

Here is my "wants" and "needs" lists. This should help folks understand what I'm looking for. It's going to be all over the place as I'm not sure where the priorities should lie. Any help in putting the build plan together would be greatly appreciated.

Needs:
A new bike for riding pavement (25%), gravel roads (60%), and light trails (15%). Most of the riding will be in and around Acadia National Park in Maine. Something comfortable but still efficient on the climbs that I can be on for the better part of a day. There’s no need for a bikepacking bike as I’ll never be too far away from civilization. Also, there will be no racing involved so no need to get all crazy on that end.

Wants:

Frame: I’m thinking I will go for another Waltly titanium frame so I can customize it to fit my purpose. Something along the lines of the OTSO Warakin. I’ve put roughly 100 miles on one of those and it was great. It was a 56cm and I think I’d like to go up to a 58cm. I’m just under 6 feet tall (maybe 182cm) and prefer a longer reach than most cramped road bikes offer.

Stem / bars: stem probably in the 70mm range. I don’t need mountain bike short but I don’t want a 100mm stem either. Bars probably 46mm wide.

Fork: Rockshox SID SL run at 80mm. It’s roughly 1350 grams and I could run it on the higher side so I’d only use 40mm or so. Most CX bikes have a tall head tube so I think I could drop that by 80mm to be around 100mm and that would keep the overall front end height the same. It could create a problem if I want to run a rigid fork though.

Seatpost: I’m liking the BikeYoke Divine SL on my single speed so I think I want to stick with that. It’s not much trouble to give the frame a 31.6 seat tube with a hole on the bottom for the cable. The Divine has a bit of cushion to it so I think that would be nice. The cushion is normal if it isn’t at it’s highest setting.

Drivetrain: Shimano GRX 1x set up. That would give me disc brakes and dropper lever capabilities.

Wheels / tires: I’ll do another Chinese carbon rim / DT Swiss 350 setup here. The tough part is deciding on what inner width and spoke count I should go with. What’s the consensus on a 21mm inner width rim with a 24 spoke 2 cross pattern build? I know it’s on the narrow side for current CX / gravel wheels but this will see more pavement than trail. This bring me to tire size and I’m not sure what size would be ideal. Maybe the 40mm range?? Would 21mm rims be sufficient for 38 to 42 mm tires? Keep in mind that I have the Ti single speed with 29x2.25 tires so I don’t need to go all trendy with big tires on this one.

So those are my thoughts on what I think I want. PLEASE let me know where I went wrong. I do not plan on ordering anything until spring so right now it’s only being built on paper.

As far as my capabilities, I've been riding mountain bikes since the early 90's and have built more bikes from scratch than I have purchased "off the shelf" bikes. So I'm good there. As for road / CX / gravel bikes, I'm completely new. I have ridden a few here and there, and the wife has a Trek Domane 6, but that's it.

5
Component Deals & Selection / GUB 1159 alternative for $16
« on: December 08, 2020, 11:08:06 AM »
I've been on a GUB 1159 saddle for a couple years now with great results. I've been looking to get another to replace the old saddle on my 29+ winter bike. I've been happiest with a saddle width between 135 and 140. I happen to come across this on Amazon the other day. I have not ordered one yet so I have no experience with it. But other than the white logos on the top, it looks like a great option at a very low price. The rails are definitely carbon and the listed weight would suggest that the rest of it is as well. Just wanted to share if anyone else is looking. 

https://smile.amazon.com/gp/product/B077D9FR5X/ref=ox_sc_saved_title_5?smid=A2UFNNBBXBWQFC&psc=1

6
Just wanted to pass this along if anyone is looking for a nice 27.5 plus wheelset.

https://www.performancebike.com/industry-nine-torch-hubs-with-hed-raptor-carbon-rims-27.5-boost-wje27bajeaee2s/p1058401

7
Vendor Discussion & Reviews / Elite Carbon Wheels factory store
« on: June 19, 2020, 05:02:54 PM »
I’ve been looking for some rims for my incoming Waltly Ti build for a month now. I’ve emailed TanTan, Nextie, and BTLOS. The biggest disappointment was in Nextie which was a little surprising. I stumbled on Elite on AliExpress and shot them a message via AE. Response time and communication has been excellent so far. I needed up ordering a set of rims for myself and a friend. Hopefully everything comes in as advertised and in a timely fashion. I’ll keep this thread updated as the sale moves along.

Purchase date: June 19, 2020

Rim 1 (mine):
29er asymmetric XC rim
33mm outer
27mm inner
29mm depth
350g advertised weight
28 hole
12k twill weave
Matte finish

Rim 2:
27.5 symmetrical AM rim
40mm outer
35mm inner
30mm depth
450g advertised weight
28 hole
Ud weave
Matte finish

8
Metal Frames / Custom Waltly Titanium 29er
« on: June 11, 2020, 08:04:15 AM »
I've decided to retire (give to my daughter) my Workswell 062 that's built up as a singlespeed and jump into the world of titanium. I was really hoping to go with a custom Seven build as they are somewhat (4 hour drive) local to me. Unfortunately I cannot justify spending over $3,000 on a hardtail frame at this time. I started looking into some of the custom Chinese manufacturers and I settled on Waltly as they seem to have a good reputation.

I first emailed Waltly on June 3, 2020. While eating my cheerios and checking my email the following morning, I noticed one from Amy from Waltly Titanium. The email was basic and to the point with few details on how the process works. I emailed her back with more information on what I was looking for and our discussion was started. Over 7 days and 34 emails, Amy has been great to deal with. I'm not one to sleep through the night so that has definitely sped up the process as there is a 12 hour difference in time. If I woke up at 1am, I would check my email and try to respond if I could. If not, every email would take 24 hours to process. She will give some feedback on dumb ideas or things that will not work, but overall, it's up to me to get it right. I have no complaints on Amy's communication as it's been as good as can be expected and isn't far off from what Peter would provide.

Overall, I've been happy with my WW 062 frame but I wanted to make some subtle changes. The headtube angle should be slacker, the chainstays should be shorter, the seat tube should be able to handle internal dropper routing, the top tube slightly longer, be able to run a Bushnell EBB, and base all of it off of the new 120mm RS Sid with 35mm stanchions. That seems like a long list but the changes to those measurements is minimal.

This is what I want the frame to look like but with some added reinforcement tubes between the seat tube and each top tube. Similar frame lines to the Kona Honzo. I sent Amy a link to this frame of theirs and asked her to copy the look but add my changes.
https://waltly.en.alibaba.com/product/62314783972-218697100/Direct_Factory_Price_High_Quality_Bicycle_Frame_650b_Titanium_bike_Frame_Small_size.html?spm=a2700.icbuShop.41413.16.1fff57dc01Q5Yh

I'm not sure how the geometry numbers will actually ride but I tried to find a happy medium between an XC race bike and a new school enduro sled.
Geometry:
Effective top tube measurement: 635mm
Chainstay length: 425mm
Bottom bracket drop: 60mm
effective seat tube angle: 73.5 degrees
Seat tube length: 450mm
seat post size: 31.6mm
Head tube angle: 68 degrees
Head tube length: 110mm
Head tube bore: 44mm top, 56mm bottom
fork offset: 44mm
fork length: 530mm

Notes:
clearance for 29 x 2.4 in tires
front chainring: 34 tooth
eccentric bottom bracket shell (68mm wide with 54mm bore for Bushnell EBB)
external zip tie cable guides on bottom of top tubes for rear derailleur and rear brake
external zip tie cable guides on right side of down tube for dropper post
internal routing in seat tube for dropper seat post
top tubes to seat tube reinforcement tube with small curve, one per top tube

So with that, here is the drawing she sent me. I'm a little curious on why the seat tube bore is 31.75mm as that seems big for a 31.6 post so I'll inquire about that one. If anything else looks off, PLEASE let me know soon so I can make any required changes.


9
I have two items that I don't need. Both are new and in the box. However, the box is not included unless you want to pay a bit extra for shipping. The listed prices include shipping to the lower 48 states. I can ship them worldwide but I just ask that the buyer pays the difference in shipping costs. 
Thanks

1) $250 - 2017 RockShox Sid RL, 100mm travel, 27.5" wheels, 15x110mm Boost axle, comes with two tokens, stealth decals, and the star nut. This is the new lighter, 100mm max travel version but since it's the RL, it does not have the Charger damper. I have one installed on my daughters bike and it weighs 1592 grams cut to 6.5 inches with the star nut installed.

2) $175 - Sram / Truvativ X0 175mm carbon crank arms, 168mm Q-factor, standard red and white logos, they can be used on boost and non-boost frames with the appropriate chainring offset. They came with a 2x ring setup and I can include that if you like. I pulled the spider and rings off thinking I was going to use them and I never did. Everything is still sitting in the Sram box.

10
Component Deals & Selection / Let's share our Chinese carbon wheels.
« on: February 01, 2018, 08:47:42 AM »
I just had another set of wheels built up with some rims from Peter at XMCarbonSpeed. It's a good as time as ever to start a wheel thread. Feel free to add to the list so people can see what some options are.

This set consists of:
AS738C rims from XMCarbonSpeed.com, 38mm outer, 32mm inner, 28h, 820 grams for the pair, measured ERD 552mm to top of nipple head
DT Swiss 350 Centerlock Boost hubs, 28h, rear is running the 54t ratchet
Sapim CX-Ray spokes also from XMCarbonSpeed
Sapim double hex self locking alloy nipples
Decals from Slik Graphics (I live in a color matched world, I blame it on my 2 daughters, don't judge me  ;D)
Total cost with labor was $950, that's using full retail on the hubs and $100 in labor.






11
Component Deals & Selection / Hub comparison info
« on: December 16, 2017, 10:59:48 AM »
So I've had this spreadsheet for awhile now but I'm just finally getting around to posting it. If I remember my process correctly, all of these numbers are based off of Boost hubs as that seems to be the most current. So if you're looking for something different, your numbers may vary. Also, all of the information is direct from the manufacturer's site so real world weights may vary slightly but you get the idea.


12
This guy has some cool carbon testing videos. It looks like he gets to have some fun testing and cutting up carbon bike parts and frames. Here is a cut away and an tutorial on the differences between an Enve rim and a generic chinese carbon rim.



His youtube channel
https://www.youtube.com/channel/UCY9JUMYI54lLOHpb_zbIedQ

If this has been posted before, well, now you get to watch it again....

13
26er & 27.5 (650b) / CS-406 27.5 Hardtail frame from XMCarbonSpeed
« on: November 01, 2017, 05:05:53 AM »
Just another build thread. This time I ordered a CS-406 from Peter in UD matte, BB92 shell, 142 axle, and size 15.5". The frame will not be shipped for another couple of weeks but I figured I would get the thread going now.

Here are the preliminary specs.

Frame: XMCarbonSpeed CS-406 15.5" frame UD matte finish, BB92, 142x12 axle
Fork: RockShox SID RLC, 100mm, 2017 w/ Charger damper, Boost axle
Bar: ENVE DH bar cut down to 700mm
Grips: ESI Racer's Edge
Stem: Wake 40mm
Seatpost: GUB 31.6 straight post
Saddle: Codream 230x140 kids seat from Amazon
Brakes: Shimano Deore M6000
Rotors: Shimano 160mm Centerlock
Wheels: DT Swiss XM421 27.5 28h rims, DT Swiss 350 hubs, DT Swiss Competition spokes, Sapim aluminum self locking nipples
Tires: Bontrager XR3's
Crank: SRAM NX 155mm GXP
Chainring: Sram 32t
Bottom Bracket: SRAM GXP BB92
Pedals: Race Face Chester
Shifter: Shimano SLX M7000
Rear Derailleur: Shimano SLX M7000
Cassette: Shimano XT M8000 11-42 11 speed
Chain: Sram NX PC-1130

Once the frame arrives, I'll post up more information and some pictures.

14
Sales & Classifieds / New Sram X0 GXP carbon crank arms 175mm
« on: October 06, 2017, 02:01:47 PM »
I have some X0 carbon crank arms that I don't need. They are new and have never been installed. $175 plus shipping.

15
Who needs some new Sram chainrings? I have a few 2x10 setups with 42 and 28 tooth rings. I also have one 3x10 setup with 44t, 33t, and 22t rings.

I'm thinking $20 sounds fair as that will cover shipping, PayPal fees, and an adult beverage of my choice.

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