Computer & lights

I've already got a couple of Cateye V2c/V3 computers; the V3 tracks heartrate, in addition to the speed and cadence monitored by the V2c. The speed/cadence sensor, magnets, and handlebar mount brackets, are exactly the same for both.

I've also got a spare Ixon IQ headlight. These interfere with many wireless computers, including my previous Cateye, but not with the 2.4GHz Cateye V2c/V3.

I'm torn between two Cateye rear lights. The compact TL-LD170 is an old and trusted favourite - simple, inexpensive, effective, and reliable. The bigger TL-AU100BS incorporates a large reflector and looks like it could be just the thing for British winters, I'd be interested to see one in the flesh and give it a try. I just might end up ordering one of each.

Cateye V2c (CC-TR200DW) / V3 (CC-TR300TW) cycle computers:
 - 71.5g (excluding magnets, zip ties, and V3 heartrate chest strap)
 - http://www.cateye.com/en/products/detail/CC-TR200DW/
 - http://www.cateye.com/en/products/detail/CC-TR300TW/

Busch + Müller IXON IQ LED front light
 - 215.5g (including handlebar mounting bracket & 4 x Eneloop AA batteries)
 - http://www.bumm.de/produkte/akku-scheinwerfer/ixon-iq.html

Cateye TL-LD170 rear light (AAAx2):
 - ?g
 - £7.99 (CRC) / ~£5.50 (bike24.com - excluding mounting bracket?)
 - http://www.chainreactioncycles.com/Models.aspx?ModelID=64497
 - http://www.bike24.com/1.php?content=8;product=3407

Cateye TL-AU100BS rear light + reflector (AAx2):
 - ?g
 - £17.99 (CRC) / ~£11.50 (bike24.com - similar model)
 - http://www.chainreactioncycles.com/Models.aspx?ModelID=64503
 - http://www.bike24.com/1.php?content=8;product=1476

 ...updated 01/11/2012 - Cateye magnet weights:
 - wheel spoke magnet = 3.0g
 - crank/cadence magnet = 2.0g