Border Bogie Challenge, Denholm, Scottish Borders

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Saturday 22nd May 2010
Saturday 22nd May 2010

Now including Gravity SidecarBorder Bogie Challenge 2010The 2010 Border Bogie Challenge will run on Saturday May 22nd, and entries will be accepted from the 1st January 2010 onwards. More details will be published on the Border Bogie Challenge web site over the coming months, but last years details should give you a fair idea of what to expect. Keep looking for updates though.

Please contact the organisers for further details.

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14mm axles

Reading your forum I notice a lot of talk about 14mm axles being the minimum to use when stub mounting front wheels Having sourced 3 old mountain bikes I find the axle dia of approx 10mm My question is whats involved with changing these to 14mm as the design we have for the chassis needs stub axle mounted wheels all round Whizbang
Anonymous | November 18, 2009 - 13:54
scottishcarties's picture

14mm axles

Experience suggests that if you stub mount your wheels using 10mm spindles, they will bend and may even shear off completely. 14mm is about the minimum diameter spindles that'll take the loading of an adult plus a reasonably solidly made cartie. 14mm is a common spindle diameter in BMX wheels.

If you've already got MTB wheels on 10mm axles, I'd say your options are fairly limited. You might be able to get the hubs machined out to the take a bigger spindle - not sure if that'd be possible - or perhaps get them re-laced onto some 14mm BMX hubs. Alternatively, change your design and mount the wheels in forks. Last option - forget the MTB wheels and source some BMX wheels on 14mm spindles.

Finally - you don't say how big the wheels are, but I'm guessing 24" or 26" - they'll need to have good strong rims, or they may well buckle. (See about 1 min into this video on youtube for an example).

Good luck!

scottishcarties | November 18, 2009 - 20:52

14mm axels

will 10mm axels be ok to run on the rear? i have a few old 20" bmx wheel but only 1 has a 14mm axel. i have a mate who is going 2 build me rear wheels with discs, but have been told 14mm axels are alot more money, so was going to have them made with 10mm axels. dont want to get the wheels if they are not going to be any good.
Anonymous | December 5, 2009 - 14:58
roo4's picture

14mm axles

10mm axles can be used but need to supported on both side.

See the YouTube clip below at 6 min this was the nae cost 1.0 built in a week of evenings



keep it rubber side down

roo4 | December 6, 2009 - 20:00
scottishcarties's picture

10mm axles too flimsy for stub mounting

I agree with roo4 - 10mm axles are unlikely to survive unless you mount them on both sides.

Unfortunately, 14mm hubs with disk mounts are very difficult to find. If you are determined to go for stub axles, you might be better off going for 20mm thru axle MTB hubs instead.

scottishcarties | December 7, 2009 - 12:17

You could use TRICE disc

You could use TRICE disc hubs available from ICE at These use an M12 High tensile steel bolt as an axle and are designed for stub mounting and have a 6 bolt disc mount. They are £30 IIRC for the hub only or £75 for a complete wheel. Even after one of my wheels was destroyed after a collision with a skateboarder the axle bolt was still straight. As others have said I would not want to use a 10mm axle single sided (which is possibly more like 8mm at the root of the threads if it is a threaded axle).
Anonymous | December 7, 2009 - 13:24
scottishcarties's picture

"only £75 for a complete

"only £75 for a complete wheel"!Surprised



scottishcarties | December 7, 2009 - 14:57

I got a pair of 20" BMX rim

I got a pair of 20" BMX rim with 6 bolt disc hubs fitted,tyre and tube for £29 each, order took 7 days to come. They are off a bmx that they sell.
pist n broke racing (not verified) | March 28, 2010 - 20:02
scottishcarties's picture

20" wheel with disk hub

Sounds like just the job. Where did you get them from and what is the axle diameter?
scottishcarties | March 29, 2010 - 15:52

Border Bogie 2010

Hi Everybody. Just like to thank everybody for supporting the first Border Bogie in 2009, the day was a great success especially as we attracted teams for the Braw North and the busy Sooth. Incredible effort went in to the entries and teams who travelled miles to come together to worship the gravity racer. We were all blown away by the standard and build quality and that especially goes for the kid entries whos imagination was inspiring. We were a little nervous about how it would go and I myself with the busy schedule never got a chance to run but it was made up for by the 60 grand Mira Car spinning out of control and hurtling into the bales doing Oh I don't know 10grands worth of damage!! It was ear to ear grins all day for everyone, don't think the Mira car will be returning next year. Next years event will take place on Saturday 22nd of May and will be a similar event to this year with a few niggles ironed out, it will be a great day with many new entries. (capped at 30) more live music, hogroast, camping and general madness. Entry forms can be down loaded from the Border bogie website and entries are being taken from the 1st of January. This year we are hoping to have large screens on the course showing the Bogies leaving the start line and finishing through the Hizzy Bends. We really hope to see some old and new faces next year and welcome all of you to take part. I can be contacted on 01450 870155 or 07887 984845 if you have any questions about next years event. See you soon. Rob Armstrong (Chairman)
Anonymous | December 1, 2009 - 22:18
scottishcarties's picture

Great stuff, Rob - looking

Great stuff, Rob - looking forward to it already.

I hope Team Tunbridge will be there again, regardless of whether they run the Mira cartie or not. Last I heard, they were building a new cartie.

scottishcarties | December 2, 2009 - 09:39


I heard a rumour that Team Tunbridge were going to return too, wonder what they are working on!! Donald Campbells Bluebird perhaps?
Anonymous | December 2, 2009 - 18:24
scottishcarties's picture

Team Tunbridge sneak preview

The wheels look a bit flimsy to me, but it shouldn't have any problems making the weight limit.

scottishcarties | December 2, 2009 - 20:15

team tunbridge sneak preview

Again they have ruined my day, where the hell do thay get the backing from to produce such fine machines. Any one got a match?
Anonymous | December 3, 2009 - 19:38
scottishcarties's picture

Border Bogie Entry Forms

Entry forms are now available for download from the Border Bogie web site.
scottishcarties | January 7, 2010 - 16:48

Border Bogies

After speaking to th event organisers it looks like there maybe big screen coverage and the police are coming with a radar gun to capture the speed. Mind folks the limit is
Anonymous | March 1, 2010 - 20:56

Border Bogie 2010

Border Bogie 2010 is only three weeks aay and there are only a handful of spaces left for entries so if anyone out there has not returned their entry form them be quick. Every thing is set for the Borders only downhill event, we have carts, music, food,camping, giant carboot sale, entertainment and awesome villiage pubs to wet the appetite. Looking forward to seeing all of you there. Remember and log onto the Border Bogie website for details. Rob
Rob the Bogie (not verified) | May 2, 2010 - 05:29


The Border Bogie challenge is now closed for entries. The forcast is hot and we are looking forward to seeing all of you there. Rob
Anonymous (not verified) | May 20, 2010 - 07:49

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