Diamondback Apex 1996

tjs129

Dirt Disciple
Hi All,

This is my first thread so be gentle! I'm a long time lurker and MTB aficionado, but so far I've only attempted to sell a pair of forks on Retrobike.

The subject of this topic is my rather handsome 1996 Diamondback Apex, picked up from the classifieds recently because it was 'too good to let go':

https://www.flickr.com/photos/143876150 ... res/YF1757

I bought it from an old boy less than 10 miles from my house - his son had long since left home and left behind the bike, and he was selling it on his behalf.

He was asking for £30, but I tyre kicked and muttered anxiously about frayed cables and he accepted £25!

I wasn't sure what year this was when looking at the listing alone; the 1995 had a TT Lite tubeset and would have been the bargain of the century. This is an AVR frame - not heat treated & with straight gauge stays, but still pretty nice for the money! I believe only the Apex SE had the TT Lite tubeset in 1996 - otherwise most Apexes had a TT Lite frame like the upmarket Axis.

It's completely original apart from a few attempts to 'downhill it up' - a lairy Saracen saddle and some horrible plasticky Nokian 2.3 inch tyres.

The big fat tyres are a reliable indicator that it hasn't seen many miles though, and it was nice to find the chain well within 0.75mm stretch and the drivetrain with low wear to match!

Against all sensible advice, I jumped on it after a quick tyre inflation & oiling of the chain and rode 20 miles, but it held up well! I've since cleaned it up a bit, ridden another 40 miles or so and got it dirty again. It's a nice ride - especially for the money - but a little flat compared to my other current MTB steed, a 1998 Lava Dome. Still, this is a subjective measure - the wheelset is pretty basic compared to the Kona, which has Mavic rims. It's generally faster over longer distances down the gravel paths due to the geometry though.

The plan is to strip and de-grease everything if I find time, but if not at least go through and replace the chain, all the cables and ball bearings & grease.

The cable management is such that I could fit v-brakes, but I'm staying with cantilevers for now in an effort to keep it true to the original where possible. I also haven't had cantilevers since my Saracen was stolen back in high school, so it's a nostalgia thing too. I've got some Altus cantilevers from a bike I stripped which are going on - the current ones are original but rubbish, and have the ugly cradle cable arrangement as opposed to the Shimano yokes. If I find my spectacles have been rose-tinted, it will be the Avid v-brakes that came off the Kona!

I'm also hoping some grease and new cables will vastly improve the performance of the original grip shifters.

I've bought an old rack for it to make it a nice but low key run-around/load lugger bike.

My eccentric streak appreciates the colour, but YMMV!
 
Ah nice! Yes this is the 1996 Apex, I used to own one just like it, and still have a few of the original components.

The wheels look like they might not be original. Mine came with black Quando hubs built with Araya rims.

And a word of warning: the original Avenir bar is light but not very strong. I didn't get much mileage out of it before it formed a large crack around the middle under the stem clamp.
 
Re:

Hmm, thanks!

The original (175g) bars are intact - I will have to torque up the stem sympathetically if I'm not already half way to an expensive dental treatment!

The bike has Altus hubs with Rigida rims - probably an improvement over Quando I would imagine?

The wheelset seems heavy, though I suspect it's mostly the tyres..

I read a thread about an Ascent build using an AVR frame that weighed around 2100g, so in theory at least this could become something quite nice!
 
Now that I think about it, the rear hub was a black 8 speed LX, only the front hub was Quando, which I never had problems with.
 
Re:

Ah, so I'm looking at downgraded wheels?

More fettled than I thought perhaps then..

Anyway, a little progress has been made today - I stripped the bike down and had a little tinker with my brand new second hand parts washer:

https://flic.kr/p/Ve9KdL

Weighing the frame and forks:

https://flic.kr/p/VPo9bp

https://flic.kr/p/VBV3uF

Frame is therefore about the same weight as the other AVR frame mentioned - very decent for a £25 bike!

The parts came up quite well but the overall impression of the frame and forks is a bit scruffy.

At this stage I'm going to remove any rust in the many stone chips and touch up with enamel paint, then she's getting built back up.

The bottom bracket is fairly rough and will need replacing - I need to check what I have lying around since I'm getting my kicks out of a next-to-nothing build with this one.

Headset was also pretty dry - it's open so new bearings and grease are going in.

The wheels I will also give new bearings and grease so effectively all pivots are tip top!
 
Re:

So here it is, the finished article - give or take some gear tweaking:

https://flic.kr/p/UFMnVX

Looking pretty good for the princely sum of £25!

https://flic.kr/p/Vk9fyq
https://flic.kr/p/VVieg8
https://flic.kr/p/VVieg8
https://flic.kr/p/VEATsw
https://flic.kr/p/VRRoeE
https://flic.kr/p/VHTAW2
https://flic.kr/p/VViFoP
https://flic.kr/p/VViFoP
https://flic.kr/p/Vk9WPW

It was a fairly straightforward build except for the gripshift; I literally spent close to an hour trying to cable up the right shifter with much profanity!

Cantilever brakes were also tricky since it was my first time working with them too.

Everything else was a dream to spanner up though - no stuck seatpost or bottom bracket, or similar retro bike hazards.

All that's left is the test ride tomorrow!

The bike now has:

New ball bearings & grease in both wheels and headset (installed loose)

New cable inners and outers throughout

New chain

New Cosine saddle (looking good for £12!)

Altus cantilever brakes, cribbed from a skip rescue part donor

Allen key chainset bolts as a finishing touch

Poorly matched Humbrol enamel touch up paint

I would estimate all this cost about £35, which is well in keeping with my 'next to nothing' build ethos for this bike.

The bearing races were in good nick throughout. The front hub - Altus - has pretty basic seals and one of the cones was a little pitted, but I cribbed a spare in good condition from a skip rescue wheel I'd been saving.
Turns out the rear hub is Alivio; this has decent seals and all was well inside there..
The headset bearings I installed loose - this was the first time I'd done this, and I messed up at first by simply installing one too many bearings in each race. Once this was sorted it felt lovely.
The cantilever brakes, once set up, had plenty of stopping power - certainly not giving much away to v brakes.

The only thing I do need to remedy is the touch up paint - it really was a bad match and I have my eye on a Ford colour to repaint over it. Still, it's sealed to oxidisation, so it serves a practical purpose I suppose..

Trouble is, now it might be a bit too nice for just a beater..
 
Sounds good, be careful using spray pints over enamel as it often reacts. Certainly the case with cellulose 'car' paints.
 
Re:

A few pictures of the build in progress:

The miracle of 1990s mass production and obseletion - £6:

https://flic.kr/p/Vm2jXd

Bearing surfaces in acceptable to great condition. Note the difference between the well sealed rear hub, which takes most stress, and the basic front hub:

https://flic.kr/p/VJM6rr
https://flic.kr/p/VJM4m4
https://flic.kr/p/VFw9NW

Could be the rear hub was made with better materials too I realise..

The donor wheel. One of the cones on the front was pitted, so I took a better one out of this one - frugal!:

https://flic.kr/p/VJM5Gk

Dry bearings in the front hub. Again, the rear still had a reasonable amount of grease due to the seals:

https://flic.kr/p/VWdvHR

The biggest bang for buck improvement that can be made to the way an old bike rides:

https://flic.kr/p/UDM3yy

Luckily an old sub-1000 mile UN54 bottom bracket I had was exactly the same size. Not sure what the factory bottom bracket was, though I vaguely recognise the logo. It was surprisingly light, but much more worn than it should have been given the condition of the drivetrain:

https://flic.kr/p/VSKF2o

Expect the obligatory mid-ride photos later today!
 
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