Dutch Trading Company (Brighton) : Bobike Brackets


Joe in Bobike Mini, Brighton 21_Milcote_Avenue
Hove
BN3_7EJ
United_Kingdom
tel:_07742_467173
email:DTCEUR@gmail.com
 
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This page lists Bobike brackets in the following order:

1) For the Mini+ and Mini City front seat
2) For the Maxi SC, Maxi+ and Junior seats
3) For the Maxi City and Tour seats

Prices include UK delivery. International air mail costs £2 to £5 more - for the moment please email for a price and Paypal invoice. Returns are 'free of charge': we refund postage for the UK. Internationally the buyer pays return postage (typically 10 US dollars on a bracket). There are 3 brackets available but not yet listed on this page: old-time Maxi standard bracket (only for steel frames) and matching ATB mounting (pressed steel, with a locking pin), and the 2-hole Mini bracket for frame mounting /folding bikes.

Last updated: Friday 7th October 2017: Price adjustment and two discontinued brackets updated.


Quill Stem Mounting Block for Bobike Mini+ Quill Stem Mounting Block for Bobike Mini+

QUILL STEM BRACKET FOR THE BOBIKE MINI. This is the standard mounting bracket and is intended for 'dutch' bikes, which have quill stems. Most Mountain and Hybrid bikes cannot use this bracket.

Fits stem diameters 20-28mm (63 to 88mm circumference, if measured with a tape measure). Externally, width=97mm, depth=80mm, height=36mm.

£12.95 Discontinued.

Bobike Mini Quill Stem Mounting Block Instuction Diagram Abstract Please check your bike's stem (steering column) for compatability: The stem is the bit the handlebar mounting block clamps on to. It must be made of steel (not aluminium alloy) with a diameter between 20 and 28mm. There needs to be enough room for the child's legs. Stems with a 'goose neck' extension, like this, put the handlebars well forward and there's plenty of room. Stems without a 'goose neck', like this, need to be raised to 20cm overall height, putting the handlebars above the child's legs. If the stem is too short to be raised 20cm, or the bike has rod brakes (operating by fixed rods), there will be no room for the child's legs.

Dutch Trading Company (Brighon)'s Test Magnet on a Quill Stem FREE TEST MAGNET. We include a TEST MAGNET with a paper tab, which can be used to check your Quill Stem is made of steel. The magnet should stick, if it doesn't the stem could be stainless steel (okay) or alumnium alloy (not okay). Please seek further adivce if the magnet does not stick.

If you would just like a magnet to first check a your bike, please send us and email.

10mm/10/13mm Box spanner

Tools needed : a 13mm spanner, ideally a box spanner (as supplied with the Bobike Mini).



Bobike Mini ATB Mounting Bracket Bobike Mini ATB Mounting Bracket Assembly picture 7

ATB BRACKET FOR THE BOBIKE MINI. This bracket mounts onto the bicycle cross bar, and is intended for mountain bikes that have a non-sloping cross bar.

The forward facing loop at the front is internally 67mm wide, 25mm high and 55mm from fore to aft. The internal measurements of the main body are 50mm wide, 125mm high and 60mm from fore to aft. The Bobike windscreen cannot be attached to this bracket. The ATB bracket puts the seat closer to the rider's knees.

£25.00 ( price includes UK first class post)

PDF icon Bobike Mini ATB Headset Mounting Bracket assembly and mounting instructions (192.0Kb, in English)

Bobike MTB and a bike large frame M8 x 180mm coach bolt Some customers have found the long vertical bolts (labelled 'I' in the instructions, M8 x 120mm), are too short. Please see the first small photo (click on it) and measure your own bike if in doubt. Longer 180mm M8 Coach Bolts will fit into the ATB bracket (second photo), but using them would invalidate the safety testing carried out by the manufacturer.

Tools needed : any kind of 13mm spanner (C-, Ring, Box).



Bobike Mini Universal Bracket Boxed Bobike Mini Universal Bracket

UNIVERSAL BRACKET FOR THE BOBIKE MINI. This pretty much supercedes the two earlier brackets, fitting steel Quill stems and 1⅛" (one and one eigth inch) steel cored headsets. In its 'Quill Stem' mode, the bracket needs 38mm of exposed stem. In 'headset mode', it requires 20mm of exposed core, which may require the removal of a spacer.

£17.95 ( price includes UK first class post)

PDF icon Bobike Mini+ and 'Mini City' Universal Mounting Block instructions (147Kb, in Dutch and then English)

Bobike Mini Universal Bracket diagram 1 Bobike Mini Universal Bracket diagram 2 Bobike Mini Universal Bracket diagram 3

Dutch Trading Company (Brighon)'s Test Magnet on a Quill Stem FREE TEST MAGNET. We include a TEST MAGNET with a paper tab, which can be used to check your bike's Steerer is made of steel. The magnet should stick, if it doesn't the steerer tube could be stainless steel (okay) or alumnium alloy (not okay). Please seek further adivce if the magnet does not stick.

If you would just like a magnet to first check a your bike, please send us and email.

Tools needed : A 5mm Allen Key.



Bobike Mini Universal Bracket Bobike Mini1 Bracket bottom view Bobike Mini1 Bracket example

MINI-1 FRAME BRACKET FOR THE BOBIKE MINI. SOLD OUT. This bracket attaches to the frame of a step-thru bike, without a crossbar, as sketched on the left (please click on the picture for a better view). The bracket is 58mm tall and it fits tube diameters 26 to 36mm.

It cannot be used with the Bobike Mini+ Windscreen.

DISCONTINUED. Please follow the two links below for the Bryan and Creed brackets.


Brompton folding bikes. I've seen the bracket used on a Brompton (something like this). Here are photos of the Mini-1 bracket fitted to a Brompton:

Bobike Mini-1 Bracket fitted to a Brompton 1 of 2

Bobike Mini-1 Bracket fitted to a Brompton 2 of 2

A customer has sent the photos on the left. The bolts aren't quiet long enough (they don't engage the Nylon anti-vibration element of the nuts) and were later replaced with longer HT (High Tensile) steel bolts. Coach bolts, which have the square head of the original bolt, are usually made of mild steel, which isn't as strong as HT steel used in the stock bolts.

I know of 2 other brackets that allow a Bobike Mini+ to be used with a Brompton:
1) Bryan, by Milan Parts
2)Creed Cycles Singapore's bracket,

The first bracket is EN14344 labelled, the second is manufactured to order.


STANDARD BRACKET FOR BOBIKE MAXI SC, MAXI+ and JUNIOR seats

STANDARD BRACKET FOR BOBIKE MAXI SC, MAXI+ and JUNIOR seats. Generally suitable for 'dutch' bikes, not mountain bikes. Comprises a mounting block and locking nuts. The seat slots into the top block, which attaches to the frame above any rear luggage rack. The two knobs anchor the seat foot rests to the bike's frame.

£15.50 including UK delivery ( UK stock, incl. UK delivery in 1-2 days)


Bobike Maxi SC Install Abstract Compatability. ~20% of our UK customers are able to use this bracket (consequently we ship all of our rear seats with the 2009 Rear ATB bracket). The bracket attaches to the 2 stays that lead from the rear axle to the top of the 'seat tube' (which holds the seat post). These are usually present and clear from obstructions on older style dutch bikes, but can be a single tube, or blocked by rim brakes, a rear wheel lock or luggage rack.

Tools needed: a 4mm Allen Key for the mounting block, and 5mm for the Locking Nuts.




Bobike 2009 ATB Minimal Bobike rear ATB/MTB Bracket complete with lower wingnuts

ATB BRACKET FOR BOBIKE MAXI SC, MAXI+ and JUNIOR seats. The ATB bracket is a U-shaped extension attaches to the 'seat tube' (part of the bicycle frame). The standard bracket mounting block attaches to the open end of the (U-shaped) bracket. Available on its own, or with the Standard bracket and locking nuts.

( UK stock, incl. UK delivery in 1-2 days).

PDF icon Bobike Maxi ATB bracket mounting instructions, scanned (1028.5Kb, English only)

Rear ATB bracket:

The U-shaped extension should only be attached to the bicycle frame, and not the weaker seat post (which the rider's saddle attaches to). .

Compatability. ~80% of our UK customers need to use this bracket, which is why we include it with the Maxi SC, Maxi+ and Junior seats. . The maximum 'seat tube' diameter is 50mm (157mm circumference). The bracket will not clear the back wheel if the seat column it attaches to is very short, like this. The following photo will produce a life-size print from Internet Explorer, and can be used to check a particular bike: Rear 2009 ATB paper template. Alternately, the following photo can be used to gauge the angles and clearances needed: Rear 2009 ATB fitted.

Tools included (a 5mm Allen Key, 4mm is not needed).


Bobike rear MTB Bracket Universal

MTB BRACKET UNIVERSAL for Maxi SC, Maxi+ and Junior seats. The bracket is wider and the angle at which it sits can be adjusted. ( UK stock, UK delivery in 1-2 days).

PDF icon Old Style / Universal Rear ATB bracket mounting instructions (3.2Mb)

Old Style Rear ATB bracket:
Bobike rear MTB Bracket Universal diagram Compatability. Very few of our customers have needed this bracket. If a 2009 Rear ATB bracket bought from us will not fit your bike, we will exchange it for this bracket (and send a prepaid postage label to return the 2009 bracket), for £8.00. The maximum 'seat tube' diameter is 43mm. The internal width of the rectangular part is 80mm and the internal length 105mm.

Tools needed: 10 and 13mm spanners, a 4 or 5mm Allen Key for the mounting block.


Bobike Maxi knobs Bobike Maxi Locking Nuts diagram 3 Bobike Maxi Locking Nuts diagram 2

Spare Locking Nuts for the Bobike Maxi and Junior seats. They secure the seat foot rests to the bicycle frame (fitting 10-25mm diameter stays).

£11.95 including UK delivery ( UK stock, UK delivery in 1-2 days)

Tools needed: a 5mm Allen Key.


Mounting Bracket for the Bobike City and Tour seats diagram Mounting Bracket for the Bobike City and Tour seats diagram Mounting Bracket for the Bobike City and Tour seats

DISCONTINUED, LIMITED STOCK (~3). Bobike 3-point Bracket the Maxi City and Tour seats (for use with a second bike). The bracket attaches to the bicycle frame at three points, as shown on the right. Weight 1.4 kg. This bracket is out of production. We have limited stock and will only sell it as a 'second bracket' for a compatable seat ( UK stock, delivery in 1-2 days)

 

 

Tools included (a 5mm Allen Key).


1-point Mounting Bracket for the Bobike City and Tour seats Bobike 1-point Mounting Bracket Instructions

Bobike 1-point Bracket the Maxi City and Tour seats. The bracket attaches to the bicycle frame at at one point, the seat tube, and performs the function of a rack for rack-mounted Bobike Maxi City and Tour seats. The metal loop can be removed from the clamp by pressing the light grey button. The loop cannot be locked in place as there is no provison for a padlock. This bracket will need the Rack Adaptor (£12) if its used on a second bike. Fits seat post diameters 24mm to 34mm. Weight 2 kg.
( UK stock, delivery in 1-2 days)

Tools needed: a 5mm Allen Key.

Lugguage Carrier Mounting Bracket for the Bobike City and Tour seats Complete Rack Mounting Assembly for the Bobike City and Tour seats in place on rack from underside

Rack Adaptor for the Bobike Maxi City and Tour Seats. This is the bottom half of the mounting that comes with a rack mounted Bobike City or Tour child seat: the part that stays attached to the luggage carier. It is sold seperately for use on a second bike.

" When is a luggage carrier suitable for the luggage carrier mounting bracket? When it satisfies the safety standard EN 14872. When it is suitable for carrying a load of at least 25 kg. When it is between 120 mm and 170 mm in width. When the luggage carrier tubes are between 8 mm and 22 mm in diameter. "

£13.00 including UK delivery ( UK stock, UK delivery in 1-2 days)

Tools needed: a 5mm Allen Key.

XL Extra Large Lugguage Carrier Mounting Bracket for the Bobike City and Tour seats XL Rack Mounting Assembly for the Bobike City and Tour seats in place on rack

XL (Extra Large) Rack Adaptor for the Bobike Maxi City and Tour Seats. An anternative to the Standard Rack Adaptor, this fits to the outside of the rack's rails, and is according to the manufacturer suitable for electric bikes (which sometimes have the battery in the centre of the rack). It is sold seperately for use on a second bike.

" When is a luggage carrier suitable for the luggage carrier mounting bracket? When it satisfies the safety standard EN 14872. When it is suitable for carrying a load of at least 25 kg. When it is between 120 mm and 170 mm in width. When the luggage carrier tubes are between 8 mm and 22 mm in diameter. " Bobike_XL_rack_bracket_fitting_instructions UK stock, UK delivery in 1-2 days.

Tools needed: a 5mm Allen Key.

Complete Rack Mounting Assembly for the Bobike City and Tour seats

Complete Rack Assembly for the Bobike Maxi City or Tour seats, as removed from a rack mounted seat. This can used to convert a 3-point mounted seat to a rack mounted seat. It complrises:

* the under-seat assembly, which attaches to the seat using three bolts
* the rack adaptor
* a combination cable lock

This is offered for outright purchase at £42, or as an exchange for the 3-point mounting system at £19. The exchange item is initially charged at £42 and comes with a return label. £20 will be refunded when the 3-point mounting is received back.

Tools included (a 5mm Allen Key).

Please note the 3-point seat will have to be modified to accept the cable lock, which I think is intended as a 'secondary retention system', in case the seat isn't attached correctly. The cable lock needs two holes to loop through, and these must be drilled if the seat does not have them. The following photos show the holes in a rack mounted seat and how they can be drilled: Bobike holes for cable lock Bobike drilling for cable lock Bobike holes drilled for cable lock underside Bobike holes drilled for cable lock topside


Complete 3-point Mounting Assembly for the Bobike City and Tour seats

Complete 3-Point Assembly for the Bobike Maxi City or Tour seats, as removed from a 3-point mounted mounted seat. This can used to convert a rack mounted seat to a 3-Point mounted seat. It complrises:

* the under-seat assembly, which attaches to the seat using three bolts
* the 3-point mounting bracket

This is offered for outright purchase at £42, or as an exchange for the 3-Point mounting system at £22. The exchange item is initially charged at £39 and comes with a return label. £20 will be refunded when the rack mounting is received back.

Tools included (a 5mm Allen Key).


Complete 3-point Mounting Assembly Complete2

DISCONTINUED & OUT OF STOCK. 3-Point Mounting Bracket Complete for rack mounted seats.


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