Proud new owner of a KH Trials (25-27mm seat post question)

MadFurai · 2012-06-13, 05:23 PM

Alright, so UDC had an awesome deal on a brand new KH Trials frame and I nabbed it. I also grabbed a new Creepy Crawler while I was there. Up until now, I have been riding a Nimbus Blizzard Trials. It's been great, but I have always wanted to "treat" myself to a KH, and this Father's Day I am doing it! Anyway, I already have the KH Street saddle and the Moments with Rollos, so I'll soon be the proud owner of my first Kris Holm Unicycle (except for the wheel).

I'm really excited, and I'm sure it will be so much lighter that I'll be doing 1080 spins by next week (insanity has set in). Anyway, I can't find anybody in the U.S. right now that has the 27mm forged KH seat post in stock. So, has anybody ever used a 25mm Nimbus seat post in a KH 27mm frame? I was thinking about using something as a shim, maybe an aluminum can (cut and secured to the post).

Is this asking for trouble? Is there a better way to do it or should I just wait for the KH post? Keep in mind that I'm not doing anything extreme yet.

Feisty · 2012-06-13, 05:33 PM

You will need more than a can as the difference is 0.9 mm on the radius

Why risk your new spangly frame, UDC have got a 27.2mm Nimbus cromo in stock for $12 which would be more than adequate for an interim post

Max_Dingemans · 2012-06-13, 05:38 PM

Looks like Compulsion has them: http://www.compulsioncycles.com/inde...product_id=963

jbtilley · 2012-06-13, 10:39 PM

I have a KH adjustable seat post that's too short for me. It may be too short for you as well, how tall are you?

You're going to the Roanoke muni gathering, right? I could bring it if it sounds like it might work out.

MadFurai · 2012-06-13, 10:44 PM

@jbtilley - I'm only 5'7" and it's for flatland/trials stuff, so it doesn't need to be very long. Can you measure how much post is left on it? I'll compare it to what I need. Thanks.

@Max - have you dealt with that company before? I've never heard of them, but I'm willing to give them a chance. Thanks.

jbtilley · 2012-06-13, 10:56 PM

If you look at the picture:

http://www.unicycle.com/unicycle-har...ail-post.html/

There's 5 1/2" of post measuring from the bottom of where the silver adjustable portion connects to the post.

or

6 3/4" from the very top where the seat meets to the bottom of the post.

Given you need at least 2" in the frame and that you'd be putting it in a trials it may be very short indeed. Probably better suited for a 36" uni.

(forgot just how short it was)

Max_Dingemans · 2012-06-14, 02:23 AM

Quote:

Originally Posted by MadFurai

@Max - have you dealt with that company before? I've never heard of them, but I'm willing to give them a chance. Thanks.

Yup. It's run by a friend of mine and all around good guy. I recommend them to everyone.

scotthue · 2012-06-14, 03:28 AM

Compulsion cycles is awesome and is an official dealer of Unicycle.com.

2012-06-13, 05:23 PM	#1
MadFurai Skateboarder to Marine to Unicycler Join Date: Aug 2011 Location: Central Virginia Age: 42 Posts: 536	Proud new owner of a KH Trials (25-27mm seat post question) Alright, so UDC had an awesome deal on a brand new KH Trials frame and I nabbed it. I also grabbed a new Creepy Crawler while I was there. Up until now, I have been riding a Nimbus Blizzard Trials. It's been great, but I have always wanted to "treat" myself to a KH, and this Father's Day I am doing it! Anyway, I already have the KH Street saddle and the Moments with Rollos, so I'll soon be the proud owner of my first Kris Holm Unicycle (except for the wheel). I'm really excited, and I'm sure it will be so much lighter that I'll be doing 1080 spins by next week (insanity has set in). Anyway, I can't find anybody in the U.S. right now that has the 27mm forged KH seat post in stock. So, has anybody ever used a 25mm Nimbus seat post in a KH 27mm frame? I was thinking about using something as a shim, maybe an aluminum can (cut and secured to the post). Is this asking for trouble? Is there a better way to do it or should I just wait for the KH post? Keep in mind that I'm not doing anything extreme yet. __________________ MadFurai's YouTube channel

2012-06-13, 05:38 PM	#3
Max_Dingemans Pedal Pedal Crash Join Date: Oct 2002 Location: Minneapolis, MN Posts: 1,391	Looks like Compulsion has them: http://www.compulsioncycles.com/inde...product_id=963 __________________ There is nothing worse than a gross exaggeration.

2012-06-13, 10:44 PM	#5
MadFurai Skateboarder to Marine to Unicycler Join Date: Aug 2011 Location: Central Virginia Age: 42 Posts: 536	@jbtilley - I'm only 5'7" and it's for flatland/trials stuff, so it doesn't need to be very long. Can you measure how much post is left on it? I'll compare it to what I need. Thanks. @Max - have you dealt with that company before? I've never heard of them, but I'm willing to give them a chance. Thanks. __________________ MadFurai's YouTube channel

2012-06-13, 10:56 PM	#6
jbtilley Muni Foot Join Date: Jul 2011 Location: North Carolina Posts: 560	If you look at the picture: http://www.unicycle.com/unicycle-har...ail-post.html/ There's 5 1/2" of post measuring from the bottom of where the silver adjustable portion connects to the post. or 6 3/4" from the very top where the seat meets to the bottom of the post. Given you need at least 2" in the frame and that you'd be putting it in a trials it may be very short indeed. Probably better suited for a 36" uni. (forgot just how short it was) Last edited by jbtilley; 2012-06-13 at 11:01 PM.

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2012-06-13, 05:33 PM	#2
Feisty Registered User Join Date: Jan 2012 Location: Worthing, England Unicycle 1: KH20 LN Sold Unicycle 2: KH24 (HS33) Sold Unicycle 3: 24 Impact Gravity Unicycle 4: KH26 (Disc) rebuilt Unicycle 5: KH29 (Disc) Unicycle 6: Triton 36 (Disc) Age: 34 Posts: 827	You will need more than a can as the difference is 0.9 mm on the radius Why risk your new spangly frame, UDC have got a 27.2mm Nimbus cromo in stock for $12 which would be more than adequate for an interim post

2012-06-13, 10:39 PM	#4
jbtilley Muni Foot Join Date: Jul 2011 Location: North Carolina Posts: 560	I have a KH adjustable seat post that's too short for me. It may be too short for you as well, how tall are you? You're going to the Roanoke muni gathering, right? I could bring it if it sounds like it might work out.

2012-06-14, 03:28 AM	#8
scotthue 10k & Marathon World Champ Join Date: Mar 2007 Location: Minneapolis, MN, USA Age: 20 Posts: 962	Compulsion cycles is awesome and is an official dealer of Unicycle.com.

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