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PostPosted: Wed Sep 25, 2013 9:49 pm 
Old School Hero
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Joined: Sun Aug 10, 2008 6:19 pm
Posts: 247
Location: Bristol, England
Sorry I haven't been around on here for a while so may have missed this important info. Just picked up a Haro Impulse, think it's a '90 model (Black, with Exage 400LX). I'm used to SPDs on my other bikes & the originals on this bike are rough; so are SPD age appropriate or should I go for some DX type flats?


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PostPosted: Wed Sep 25, 2013 9:59 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Sun Sep 16, 2012 9:59 pm
Posts: 2174
Location: Kent, UK
Hi,

A very useful website for this sort of question: http://mombat.org/Shimano.htm

SPDs were introduced in 1990, the PD-M737. Use whatever pedal you feel comfortable with, as retro SPDs are getting hard to find and are often knackered!


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PostPosted: Wed Sep 25, 2013 10:13 pm 
rBoTM Winner
rBoTM Winner
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Joined: Wed Dec 12, 2012 10:18 pm
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Location: California
Looks like you got your answer, I would have guessed 1989 but can't argue with the evidence. BTW I still use PD-m737s largely because I don't like float so I have to use old pedals.


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PostPosted: Thu Sep 26, 2013 12:12 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
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Location: Sunny Glasgow
When did H2o's appear :? I think ive the body of a set of them :? no axles just the bodies/rubbers


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PostPosted: Thu Sep 26, 2013 7:55 am 
Old School Hero
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Joined: Tue Apr 21, 2009 1:02 pm
Posts: 190
Location: Edinburgh
I still have a pair of H20s in the box, I bought them after my first SPDs so must have been early 90s, I think they were on special so might have been old stock.
Only problem with them were that the elastomers just weren't strong enough to keep me clipped in.


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PostPosted: Thu Sep 26, 2013 8:01 am 
King of the Skip Monkeys
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
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Location: Moomin Valley
SPDs are great on any age of bike, I use them on a 1974 build, 1986 and onward. Cant get on with flatties anymore.


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PostPosted: Thu Sep 26, 2013 10:50 am 
Old School Hero
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Joined: Mon Jun 14, 2010 1:38 pm
Posts: 244
Location: Berks
andyz wrote:
SPDs were introduced in 1990, the PD-M737. Use whatever pedal you feel comfortable with, as retro SPDs are getting hard to find and are often knackered!

I picked up a mint boxed pair of PD-M737s recently for an absolute steal, they're still out there ! Too scared to use them now :oops:


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PostPosted: Fri Sep 27, 2013 6:44 am 
Old School Hero
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Joined: Sun Aug 10, 2008 6:19 pm
Posts: 247
Location: Bristol, England
Thanks for the info, that Mombat site particularly interesting. What I was thinking, I'd rather go with SPDs if I'm going to actually ride the thing. Got a few other issues to address before I get to that point! When it's in working order I can post up pics & see if someone can link to original specs etc (looks like apart from the pedals, seat & grips it could be all original).


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PostPosted: Fri Sep 27, 2013 8:17 am 
retrobike rider
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16736
Location: Yorkshire, England
Just to say ..
That mean 'model year 1991'.
Catalogues are in the archive.
It's HO's not H2O for the Onza's
H2O was a bottle cage or water, take your pick.

(Models come out the end of the previous year)


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PostPosted: Sat Sep 28, 2013 9:02 pm 
Retro Guru
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Joined: Fri Jun 12, 2009 11:58 pm
Posts: 801
Location: Quantocks
Pro's on the USA circuit were running them in 89.


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