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NSMB - 2023 - Hardtails Leaning Against Stuff Thread

Nov. 16, 2023, 11:25 p.m.
Posts: 212
Joined: Nov. 20, 2020

Posted by: GiveitsomeWelly

This a little off-topic for this thread but I'm going up a wheel size on the rear (26" to 27.5") of my ss.

I'm aware that a tooth or two more on my cog (or fewer were I to downsize my chainring instead) will be needed to account for the bigger wheel. 

Is there a loose 'rule' to how many teeth a wheel size should add to my cog if everything (including my trails) stays the same? 

I'm currently coping On 32:18.

You can calculate what your new gear ratio should be based on gear inches: https://www.bikecalc.com/archives/gear-inches.html

Assuming a 26x2.25" tire and a 27.5x2.25" tire, 32:18 on 26" is 47 gear inches. To match that on 27.5", you could run a 31:18 (47 gear inches), a 30:18 (46 gear inches, slightly easier), or a 30:17 (48 gear inches, slightly harder).

Nov. 17, 2023, 4:08 a.m.
Posts: 323
Joined: Jan. 10, 2022

Posted by: SteveR

What we have here is a Dekerf Team, 2000 vintage…

Your Dekerf is a beauty! That trail is quite well used by the gravel bike set so I bet it was ideal on the older geo.

I’m in the same studded tire purgatory as you are right now. Went for one fantastic winter ride (on that very trail) then had to break the FS and summer shoes back out of storage. I wonder what this weekend has in store?

Nov. 18, 2023, 8:39 a.m.
Posts: 33
Joined: Nov. 9, 2008

Long time lurker first time posting into forums in a decade. Find myself reaching for the Chromag Primer more often than not for Fall riding in Fraser Valley.

Nov. 18, 2023, 4:30 p.m.
Posts: 1189
Joined: March 15, 2013

Those deals on Chromags site are looking pretty hard to resist right now.

Nov. 19, 2023, 8:22 a.m.
Posts: 1346
Joined: Aug. 13, 2017

Out of interest do the Canadian made Chromags ride similar to the Taiwanese ones?  I assume they do.

Nov. 19, 2023, 12:07 p.m.
Posts: 97
Joined: Jan. 18, 2019

That's an absolute beauty, Dokk.

Nov. 19, 2023, 3:35 p.m.
Posts: 45
Joined: June 19, 2018

It’s that time of year when bottles, on-bike storage and hip-packs get replaced with the trusty not-actually-a-Camelbak, as most rides involve an awful lot of mud!

Muddy Moxie

Also, singlespeed in the mud is a good reminder that you haven’t got out enough recently because two hours in your legs are running out of strength but you don’t have the option of spinning an easier gear…

Despite some very muddy (and amusingly sideways) bits, a lot of the (very unofficial and natural) trails were running really well, but so many fallen trees to climb over, literally never seen it this bad. Need chainsaw-owning friends to do some tidying in exchange for beer!

On the bike front, back to 203/183 floating discs after the 2.3mm thick 220/200 (to match my full-sus) proved too prone to rubbing in the Hope E4 calipers. And new DT Swiss XM1700 wheels (huge bargain!) to replace the old Roval wheels that my Levo donated. Hopefully that’s it for a long time, it’s feeling dialled!

(And I put a proper front mud-guard on after too many mud in the face moments the previous two rides - that Hillbilly 2.4 is great at finding grip and not clogging but it clearly picks up a lot of mud, and then throws it everywhere!)


 Last edited by: a.funks on Nov. 19, 2023, 3:41 p.m., edited 1 time in total.
Nov. 19, 2023, 3:57 p.m.
Posts: 97
Joined: Jan. 18, 2019

Awesome bike a.funks. The days are getting longer and dryer where I am but the single speed still gets used as much as the other bike. 

I'm always interested in the correlation between someone's chosen gear and the steepness/ technicality of the terrain they have to climb in the area let alone their perceived/actual fitness/strength levels. 

I have a combination of a flat 6km road ride and quite a steep slog of a paved/fire road or tight punchy single track to the top of my local and am always thinking about making my climbs easier but don't want to turn the flats into a spin-fest...

Single speeding is cool af.

Nov. 19, 2023, 4:33 p.m.
Posts: 33
Joined: Nov. 9, 2008

I have only ridden the Primer which is Canadian built version. Bought the frame as a fundraiser for a friend. Absolutely love it...now to keep working on my HT technique.

Nov. 19, 2023, 4:33 p.m.
Posts: 33
Joined: Nov. 9, 2008

Posted by: GiveitsomeWelly

That's an absolute beauty, Dokk.

Thank you

Nov. 19, 2023, 11:43 p.m.
Posts: 212
Joined: Nov. 20, 2020

Stooging in the mist this weekend.

I also just pulled the trigger on a custom frame (Waltworks) and now I get to agonize over things like seat tube angle for the next couple months!

Nov. 20, 2023, 1:11 a.m.
Posts: 1346
Joined: Aug. 13, 2017

Posted by: TristanC

Stooging in the mist this weekend.

I also just pulled the trigger on a custom frame (Waltworks) and now I get to agonize over things like seat tube angle for the next couple months!

75 degrees*  

(1 degree steeper than my Solaris Max and 1 less than my Murmur)

* based on a 444/445 chainstay and 31" seat height.

What numbers are you looking at?

Nov. 20, 2023, 1:15 a.m.
Posts: 1346
Joined: Aug. 13, 2017

Posted by: Dokk

I have only ridden the Primer which is Canadian built version. Bought the frame as a fundraiser for a friend. Absolutely love it...now to keep working on my HT technique.

I do love the shape of the Primer / Rooty.  Keep those piccys coming.

Flats will sort out your HT technique. I remember when went full time flats on the HT 18 months ago - I couldn't stay on the pedals for the first few rides. Then things got better, now I wouldn't change back.


 Last edited by: fartymarty on Nov. 20, 2023, 1:16 a.m., edited 1 time in total.
Nov. 20, 2023, 1:17 a.m.
Posts: 1346
Joined: Aug. 13, 2017

Posted by: GiveitsomeWelly

The days are getting longer and dryer 

Jealous - Yes I am.  Enjoy.

Nov. 20, 2023, 5:13 a.m.
Posts: 212
Joined: Nov. 20, 2020

Posted by: fartymarty

75 degrees*

(1 degree steeper than my Solaris Max and 1 less than my Murmur)

* based on a 444/445 chainstay and 31" seat height.

What numbers are you looking at?

65° HTA, enormous butt-to-bar distance (~763mm), and STA TBD. I'm currently riding an overforked (140mm) Surly Ice Cream Truck XL. HTA is 65°, but the seat angle has slacked out to 70°. I'm trying to solve two problems: it's too small for me (riding a 90mm stem), and I have issues with looping out on really steep climbs, it's hard to keep the front wheel down. Pink below is the current geo, blue is 73° STA, green is 75° STA (both matching butt-to-bar with the current geo but with a 35mm stem).

What I'm debating is, how far to go with STA vs. longer chainstays to keep the front end down without losing back end traction? And also not make it ride super weird with a shorter fork, since I generally run rigid in the winter and the longest rigid fork Walt can make is 505mm A-C and the squishy fork is 550mm A-C. And finally not make it a barge - pink is 1213mm wheelbase, blue is 1302mm, green is 1330mm.

Use case is: rolling punchy trails (whatever the opposite of winch and plummet is), ultra endurance and bikepacking.


 Last edited by: TristanC on Nov. 20, 2023, 5:14 a.m., edited 1 time in total.

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