Transition Spire Angleset suggestion

astrizzle
Posts
362
Joined
4/11/2010
Location
Moscow, ID US

Hi there everybody, I am hoping to get your advice on which angleset to get for my Transition spire. I want to run it in the "low" mode but the freakin head tube angle on this thing is scary slack in that mode so I wanna make it steeper but now the question comes to mind: HOW steep to make it? 

I feel like this is super dork level to quibble over a half of a degree but if anyone would be able to help, it is ya'll, I'd really appreciate it. 

+1 degree = 63.5 degrees

+1.5 degree = 64 degrees

+2 degree = 64.5 degrees

Now if I can only get a longer seat stay for this thing, she would be PERFECT!!! 

Poll

How much steeper to make the Spire?

Choices
1
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JoeXC
Posts
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4/24/2022
Location
Pacific Grove, CA US
12/14/2025 11:19am

Just remember the steeper you go the higher it raises the front end is and that will make a slacker STA, higher BB & stack. 

That also make a 2 degree angleset have around a 1.5 degree actual change in HTA.

4
astrizzle
Posts
362
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Location
Moscow, ID US
12/14/2025 11:39am
JoeXC wrote:
Just remember the steeper you go the higher it raises the front end is and that will make a slacker STA, higher BB & stack. That also...

Just remember the steeper you go the higher it raises the front end is and that will make a slacker STA, higher BB & stack. 

That also make a 2 degree angleset have around a 1.5 degree actual change in HTA.

Thanks, its crazy to think about all these other changes that come along with the angleset

1
12/14/2025 11:48am

It looks like there is only 0.5 degrees difference in the "low" position - what are you hoping to achieve with the lower setting? Have you tested it on its own yet? I would probably suggest just doing the 1 change and see if you notice the negative traits.Trying to preempt an adjustment with another adjustment is the fastest way to send yourself on a wild goose chase and end up with a kooky riding bike you're never happy with. As others have suggested, the steeper headtube angle will bring about several other geometry changes, all of which could possibly be worse than the half degree head angle change. 

The golden rule is always make 1 adjustment at a time, or else you will introduce a whole load of other variables you hadn't planned for

4
12/14/2025 12:04pm

I just put a +1 on mine. excited to get back out on it in the spring once the snow is gone. 

1
astrizzle
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Location
Moscow, ID US
12/14/2025 3:30pm
It looks like there is only 0.5 degrees difference in the "low" position - what are you hoping to achieve with the lower setting? Have you...

It looks like there is only 0.5 degrees difference in the "low" position - what are you hoping to achieve with the lower setting? Have you tested it on its own yet? I would probably suggest just doing the 1 change and see if you notice the negative traits.Trying to preempt an adjustment with another adjustment is the fastest way to send yourself on a wild goose chase and end up with a kooky riding bike you're never happy with. As others have suggested, the steeper headtube angle will bring about several other geometry changes, all of which could possibly be worse than the half degree head angle change. 

The golden rule is always make 1 adjustment at a time, or else you will introduce a whole load of other variables you hadn't planned for

Good question there, I am mainly trying to get more front end grip, more responsive steering and more balance or being more centered in the bike for more turning confidence. I've tested it in the low mode only a few times and in the high mode only a few times so more research is still needed here. 

2
Bananamoon
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Location
Ulricehamn SE
12/26/2025 5:17pm

I have no opinion on the topic here, just wanted to tip of a website where you can play with different adjustments in the geo-calculator att www.bike-stats.de/en

Here is the 2022 Spire in size large, low setting and with a fox 38 170 mm fork.

1 degree

Screenshot 2025-12-27 01.46.54

 

Compared with the differences between high and low setting.

image 528 

And the other angle sets

1.5 degree

Screenshot 2025-12-27 01.53.40.png?VersionId=n6pK hxbZ7z

 

2 degree

image 524.png?VersionId=bFOJ1OJiF3
2
thegromit
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212
Joined
11/19/2015
Location
Durango, CO US
12/26/2025 9:12pm

I think what you might be looking for is called a RAAW Madonna. But I would just try a 1.5, then you can use both positions at the shock and not be so low or try a 27.5 rear wheel in the high position and not be too far off of stock.

2
Thecolonel
Posts
34
Joined
3/9/2023
Location
Fairview, NC US
12/26/2025 11:50pm

I set up a Spire with a +2 angle set and 27.5 rear wheel (low setting) for my son in law. We were looking for ride characteristics similar to my Raww Madonna V3 (also with 27.5 rear) and we are pleased with the results.

3
1/6/2026 3:37pm

I just set up my spire with the 1.5 angle adjust headset from works. Haven't had a chance to ride it yet as its been pretty rainy lately. Bouncing around in street though it felt easier to corner and less wheel flop, which makes sense. I'll try to remember to post here after I get a first proper ride on it.

2
4/14/2026 4:19pm

Hello, I am stumbling on this thread. If I am trying to have a mullet wheel that feels much like the stock setup, but not go mullet full time (no one is allowed to suggest a Patrol!) would it be a move to get a 1 degree steeper set and run the bike mullet in high and standard in low?

I am also considering an offset shock bushing to accomplish the same. I could also leave it stock and run her in 62.3 HTA with the mullet wheel. I am happy to hear suggestions.

thegromit
Posts
212
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Location
Durango, CO US
4/14/2026 8:18pm

Offset bushings aren't great in the longer eye to eye position. I had a spire that I ran mullet and liked it but I ran a +2 headset. I still have the headset if you want to buy it. geo chart attached-Screenshot 2026-04-14 at 9.16.51%E2%80%AFPMScreenshot 2026-04-14 at 9.17.04%E2%80%AFPM.png?VersionId=VTRos8UwLowv2hy.s fmXncxi281Q

1
thegromit
Posts
212
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Location
Durango, CO US
4/14/2026 8:31pm
Screenshot 2026-04-14 at 8.10.23%E2%80%AFPM
4/15/2026 9:43am
thegromit wrote:
Offset bushings aren't great in the longer eye to eye position. I had a spire that I ran mullet and liked it but I ran a...

Offset bushings aren't great in the longer eye to eye position. I had a spire that I ran mullet and liked it but I ran a +2 headset. I still have the headset if you want to buy it. geo chart attached-Screenshot 2026-04-14 at 9.16.51%E2%80%AFPMScreenshot 2026-04-14 at 9.17.04%E2%80%AFPM.png?VersionId=VTRos8UwLowv2hy.s fmXncxi281Q

The reason I would want to do offset bushings would be to easily switch between mullet and 29 w/o a headset press easily. Is there anything specific you think is bad about them?

I would be interested in buying the headset, price dependant.

boozed
Posts
644
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6/11/2019
Location
AU
4/15/2026 5:18pm
thegromit wrote:
Offset bushings aren't great in the longer eye to eye position. I had a spire that I ran mullet and liked it but I ran a...

Offset bushings aren't great in the longer eye to eye position. I had a spire that I ran mullet and liked it but I ran a +2 headset. I still have the headset if you want to buy it. geo chart attached-Screenshot 2026-04-14 at 9.16.51%E2%80%AFPMScreenshot 2026-04-14 at 9.17.04%E2%80%AFPM.png?VersionId=VTRos8UwLowv2hy.s fmXncxi281Q

The reason I would want to do offset bushings would be to easily switch between mullet and 29 w/o a headset press easily. Is there anything...

The reason I would want to do offset bushings would be to easily switch between mullet and 29 w/o a headset press easily. Is there anything specific you think is bad about them?

I would be interested in buying the headset, price dependant.

The longer position is unstable because the forces involved are liable to rotate the bushings and at that point all sorts of things can happen, none of which you probably want.

One manufacturer of eccentric bushings (Burgtec) supports this configuration but another (Offset Bushings) recommends against it.

astrizzle
Posts
362
Joined
4/11/2010
Location
Moscow, ID US
4/15/2026 9:23pm

You guys are amazing bike nerds in the best possible way, thanks for sharing all the information there. I did end up going with the +1 degree headset but hopefully they redo the spire in the next year or so and correct the geo mistakes they made on the first model. 

OR maybe just save up all my money and get a frameworks, those things look perfect on paper, they need to get one out for testing to all these companies, the public wants to know!

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