Saturday, September 25, 2010

Bob Jackson tandem


Completed, if not finished, this morning.

I have had the frame for about 20 years, but have not ridden it since the mid '90s.
Earlier this year I had some good rides with Gayle on Worrall's tandem, so I decided to build this one up with modern components so that we can shift gears while climbing or sprinting out of the saddle

Fortunately, when I was younger and stupider I had respaced the dropouts back so that a modern rear wheel would fit.
The drivetrain is a Campagnolo/Shimano/SRAM hybrid, with Campagnolo Chorus 10 speed Ergopower and rear derailler and a Shimano Ultregra hub with SRAM PG970 12-26 cassette.
A J-Tek Shiftmate corrects the cable pull of the 10 speed Campag shifter for the 9 speed cassette.
Cranks are Suntour Superbe Pro, rethreaded by Bruno at Cycle Express, on Campagnolo Veloce 111mm bottom brackets.

Chainrings are 52/38, which should give us a low enough bottom gear, but might leave us a bit short at the top end.

Because of the curved seattube, the front derailler needs to be positioned a couple of centimeters further back, hopefully easy to achieve by making an aluminium packer to go between the mounting bracket and the derailler.


The brakes are self-energising cantilevers. Front is Scott SE, rear is Suntour XC Pro.

All the Bob Jackson tandem photos

Friday, September 17, 2010

Scraping the bottom of the barrell?

This week I broke one of my rules of being on holiday, and visited a couple of local bikeshops on my own time.

On Tuesday I went to Cycle Express to collect some Suntour Superbe Pro cranks that Bruno had rethreaded for use on my tandem.

Twice, I found myself at T.White's Bikes.
Saturday evening for the excellent CGG Jenna Makgill fundraiser, which left me financially poorer but hopefully rich in kharma; then again yesterday to get a set of single chainwheel attachment bolts for the aforementioned tandem.

This is not a normal situation for me- having assembled my last four vintage bikes almost entirely from parts that I had on hand, I don't expect a project to grind to a halt for want of a packet of bolts.
Perhaps this means that I am finally scraping the bottom of my barrell?

I doubt it.
Despite using some of the pile of parts into bicycles, and some recent success selling surplus frames on Trademe, my shed looks no less cluttered.

Friday, September 10, 2010

Something to do in the weekend

It would be bad manners to miss out on this opportunity to support the fabulously amazonian Jenna Makgill

Monday, September 06, 2010

Mine at last!

This morning I won the ebay auction for this lugless Tom Ritchey road frame.
I have been looking for one since about 2003 but this is the first one I have found in my size.
According to the vendor, it dates to the late 70s. With fully lugless, fillet brazed construction and a sloping fork crown it bears a strong resemblance to the lugless Ritchey frame from the Palo Alto Bicycles catalog.

Now that I have won the auction, I can start accumulating parts.
My plan is to use a set of original Suntour Cyclone deraillers that CTB gave me, with early Suntour Superbe cranks, brakes, shiftlevers and hubs.
The rear dropout spacing is 125mm, so a 7 speed drivetrain should be possible.
I have a dilemna regarding bars stem & seatpost, whether to go for period correct parts; or to use my 1990s Nitto-made Ritchey WCS stem possibly with a Nitto S83 seatpost.

MORE PHOTOS

Wednesday, August 18, 2010

Raleigh Gran Tour on trademe - SOLD

This week's Trademe delight is a slightly hard done by but basically decent 60cm Raleigh Gran Tour frame.
With a bit of love and elbow grease this will make a great winter bike, commuter or credit card tourer.
If you don't believe me, take a look at Oli Brooke-White's stylish but low-budget Gran Tour:

Sunday, August 15, 2010

Saturday, August 07, 2010

CTB Tour of Tahiti updates

After a couple of bouts of food poisoning CTB has finished the Tour of Tahiti 23rd on GC and 4th in the masters competition.

After stage 12:
CTB: "Wahoooo. Just finished a 48kph crit.
Teammate won.
Feeling satisfied"


DB: "Good work! Do you have beer yet?

CTB: "Yeah I had money in my pocket and had a beer at the first pub past the finish line."

Before the Stage 12 criterium:
"I am amped. Mark (Langlands) won yesterday.
We just want to stay upright. And tomorrow we have a specatcular day off planned"


After Stage 11:
"Hi I am sick again but made it to the finish. It was a 10km climb to 600m today so not much fun. Lost a couple of minutes. Only a criterium tomorrow night to go! Yay."

Final results are up on the
Tour of Tahiti website

Wednesday, August 04, 2010

Stage 10

From CTB:

"I blew with 10k to go. Gutted! I dropped to 2nd on the masters and 26th on GC. First weak day. Hopefully tomorrow will go better."

Stage details for the French speakers among you.

Stage 10 results

Tuesday, August 03, 2010

After stage 6


Tour of Tahiti, stage 9

A brief text report from CTB:

“Eagle from Onehunga hangs on to lead on another summit finish! I hate skinny little climbers who make me look so slow and hurt so much on 20 min climbs!”

With three stages to go, CTB is still in the masters jersey, but dropped three places on GC today to 19th.

Photo from stage 8

Monday, August 02, 2010

CTB strings out the bunch

From stage 3

More vicarious suffering

A text report from CTB:

"Today was hard. 120km. 4km climb to 300m to the finish.
Ave 42kph
Pulse for the last 15mins 185BPM
Still leading masters. 16th on GC"


Stage 8 Results

A couple of photos from Stage 5:



Saturday, July 31, 2010

A vicarious night on a drip

CT-B ate something inappropriate during the rest day yesterday, and spent last night on a drip.
Despite suffering epically in todays' sixth stage of the Tour of Tahiti, he managed to maintain his Masters ranking but dropped to 17th on GC .
Go CTB!
Drips are Pro!

Friday, July 30, 2010

Another vicarious cycling triumph

After five stages in the Tour of Tahiti, CT-B is first Master and 15th on GC.

In Thursday's stage he got in a breakaway from the start, eventually taking a couple of minutes out of the next Masters rider.

Wednesday, July 28, 2010

Ron Cooper

I have wanted a Ron Cooper racing bike ever since Richard Oddy brought his 1969 Cooper on our first ever Retro Ride back in 2002.

Early this year I posted a wanted to the Classic Rendezvous email list, and within a couple of days I was in negotiation with CR listmember Gabriel Romeu for his celeste Cooper frame.
Gabriel emailed a few photos, and I was sold as soon as I saw the four neat holes in the bottom bracket shell.

The frame arrived in the mail 4 or 5 weeks later and, as is my wont, I quickly assembled the bike for the following morning's ride with the Solo bunch.

Most of the parts were handily lying about, but the Roy Thame sacrificed its wheels, to which I glued a pair of 25mm Continental Competition tubulars.

My plan was to build a basic Campag Nuovo Record road bike, but, as I rummaged around, it became inescapably obvious that I should use a lightweight OMAS headset and titanium bottom bracket which presented themselves.

Continuing in this vein, after a couple of rides I felt compelled to replace the steel Nuovo Record derailler pivot bolts with titanium Super Record parts before venturing onto the Butter Chicken loop with Gayle.

The initial build left a bit to be desired.
I struggled with the 14-21 cluster on the wheelset, and the modern Brooks Professional saddle was a bit wide, so I found a 14-24 freewheel and a rough looking old model Pro which has become more presentable with use.

Gabriel had told me the frame took a 26.8mm post, but my 26.8 post seemed to slip every couple of rides, so I reamed the seat tube out slightly to take a nominally 27.2mm SR Royal post.
While I had a broken collarbone recently, Gayle very kindly came round and buffed the post, which I had de-anodised with ovencleaner, to its current shiny finish.






The Salsa stem was quickly replaced with a plausible looking 14cm TTT Record that came at very good price from ebay.
To further improve my hillclimbing performance I replaced the expander bolt with an aluminium part that requires a 7mm allen key, a tool which is never to be found when you need one.
MORE PHOTOS






Headset               OMAS
Bottom bracketOMAS Big Sliding titanium
CranksetCampagnolo Nuovo Record 175mm, 41/53
BrakesCampagnolo Record, standard reach, pre 1978
Brake leversCampagnolo Victory
ShiftleversSuntour bar end shifters
Front derailler             Campagnolo Nuovo Record
Rear deraillerCampagnolo Nuovo Record Pat.82
Hubs Campagnolo Record, wide flange 28h
FreewheelSuntour Ultra 6, 14-24 or 14-26
RimsFiamme Red label tubular
SaddleBrooks Professional
SeatpostSR Royal ESL
StemTTT Record 14cm
Handlebars TTT 44cm
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Thursday, July 22, 2010

Cycling shoes for sale, part 1

The recent acquisition of a pair of Quoc Pham fixed shoes for my urban and social riding, plus a pair of Dromarti Race for more sporting toeclip & strap pedal use has rendered obsolete a number of pairs of shoes currently cluttering the bottom of my wardrobe.

The first three pairs of these orphans are currently listed on TRADEME, closing next Wednesday evening.

Wednesday, July 21, 2010

My vicarious cycling career

While I have not been blogging, my friends have been riding:

Kate stayed upright at the Tasmanian Christmas Carnivals this year, had a decent crack at the Elite Track Nationals, won the Manukau Velodrome Rider of the Year, and has now departed these shores.

CTB finished the Kiwi Brevet in third place, albeit with his arse abraded, then was happy to finish Masters Points race at the 2010 RaboPlus Track Nationals uninjured.
He was first Master at T42.
Against all expectation , he recently turned 40, which he turned to his advantage by wangling the old guy's spot in the BikeNZ team to the Tour of Tahiti at the end of this week.
He also organised a very entertaining Tour of the Waikato Hotpools over the Easter long weekend.

The sublime but terrifying Gayle had a solid ride at the Elite Road Nationals, got third in a stage of the NZCT Womens Tour, then topped off her season by winning the Biosport Criterium series.