to Shim or not to Shim
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Stem Suspension or Cheap Fork Suspension?
Stem Suspension
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Cheap Fork Suspension
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Total Votes : 3

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dav_dump



Joined: 18 Jul 2008
Posts: 3
Location: Nth Lincs, UK

PostPosted: Fri Jul 18, 2008 10:45 am    Post subject: to Shim or not to Shim Reply with quote

Hi
I currently have a 5yr old good quality Giant rigid MTB (no suspension), and due to slightly dodgy wrists, I feel that I need some sort of impact damping. I have been offered two options; a low end fork (RTS) or a suspension stem. I was originally just planning on using the stem as I do most riding on roads. But it is a 1" quill stem and my bike has a 1 1/8" steerer tube and this leads me to my first question,

1. Can I use like a seatpost shim to fit a 1" quill stem into a 1 1/8" threaded tube? If not then the next is irrelevant

If I can shim it, what would you recommend for my situation? I currently use my bike mainly for road commuting and some dirt tracks, and very occasionally I may want to use it fully off road. I have used this rigid bike for many years off road and its been okay, and I'm not too keen on the power that is wasted into the suspension on hill climbs etc.
So next question:

2. Is a stem suspension any good or should I just sacrifice a little efficiency (is this even significant?) on my commute and go for the front suspension?
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mr-marty-martin



Joined: 30 Jun 2008
Posts: 3778

PostPosted: Fri Jul 18, 2008 4:16 pm    Post subject: Reply with quote

not realy sure what your goin on about but... id go for a front susp.

how much you looking at. mabey you could get a cheap decent 07 one
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dav_dump



Joined: 18 Jul 2008
Posts: 3
Location: Nth Lincs, UK

PostPosted: Fri Jul 18, 2008 4:47 pm    Post subject: Reply with quote

i already have a suspension stem, an RTS fork and a Suntour fork. So I'm only looking at buying the stuff need to fit it i.e. A shim for the stem or a headset and a stem for the forks, so about 30-40!
has anyone tried a shim on a quill stem before!?!
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Gunner



Joined: 15 Apr 2007
Posts: 29326
Location: Under Whitestone-Cliffe on the Lake.

PostPosted: Fri Jul 18, 2008 5:26 pm    Post subject: Reply with quote

I don't believe there is any benefit to be gained from stem suspension, I remember the original Flexistems which made an appearance in the early 90's and used coloured "spacers" to allow adjustment to the degree of suspension required. This was a fiddly process, not all that worthwhile and often the spacers broke on heavier impacts.

I'd go for sacrificing that little bit of efficiency and use front suspension if it is going to save your wrists from discomfort, I mean your not a racer, or a performance cyclist are you? so what does it really matter.......

Wink

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GOLDGPR



Joined: 12 Feb 2008
Posts: 136
Location: YORK, N YORKS

PostPosted: Fri Jul 18, 2008 10:35 pm    Post subject: Reply with quote

Would expect the forks to be a better bet so long as they have lock out then you can use them on the road without making too much diffrence to speed/handling.

Wouldnt use a shim why dont you just change to a no threads head set and change to a 1 1/8th stem with the forks.

As an alternative have you looked into either of these to reduce/aid a more conforting ride....

http://www.ergon-bike.com/en/index.html
or
http://www.bikeradar.com/gear/category/components/handlebars/product/m ary-9630

G
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dav_dump



Joined: 18 Jul 2008
Posts: 3
Location: Nth Lincs, UK

PostPosted: Sun Jul 20, 2008 12:08 am    Post subject: Reply with quote

hi thanks for the suggestions. I've decided to go with the fork.
Can anyone recomend the best headset and stem for about 10-15 each?
bearing in mind I won't be using it for jumping etc!
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