Precision Potentiometers (TM F1/Nas Pro)

I desperately need to replace the steering pot for my TM F1 (nas pro in US) Having done a bit of research it seems that conductive polymer pots are the answer. After a lot of searching I have found some "precision" conductive polymer pots available in the UK that are rated for 10million cycles. One in particular seems pretty much ideal but for two things..... The highest resistance the pot is available in is 50k ....... I know that the original TM pot was 250k and a lot of wheel pots are 100k so I wonder.... <<>>Will a 50k pot work at all? <<>>Are there any disadvantages in using a lower resistance? <<>>The shaft of the pot is metal rather than plastic .... has anyone had a problem fitting replacement pots with metal shafts to their TM F1/nas pro ? I know to make sure the new pots are linear, that they have the right shaft size and have a large enough rotation angle, but are there any others things I need to be aware of (such as power rating)? The pots themselves cost 9.50 each ... plus another 5 for delivery so I'm really keen to make sure I get the right ones first time!! I have included the spec of the pots at the end of this posting If anyone can give me advice about replacement pots or tell me whether the ones I have chosen are ok ... I'll be very grateful :) I also have one other related question... A previous post to this NG said that the pedal pots in the TM F1/nas pro are different to the steering pot. From memory they said that they are 100k but most significantly only have a 30degree angle of rotation. This is because the design of the pedals mean the pot is only turned 25degrees or so from zero throttle to full throttle. <<>>Would the 360degree 50k pots I have picked out for the steering be suitable to use to replace these pedal pots, or would I be better off with something different? Hopefully once I sort out these pots I'll gain another 12months use from my much loved, very well used but very fragile wheel :) thanks in advance :) Marc Single Turn Precision Potentiometer 22mm 1W Precision potentiometers are intended to be used as 3 terminal potential dividers. Use as a 2 terminal variable resistor is not recommended. Spectrol Precision single turn bush potentiometer Conductive plastic element Stainless steel end slotted shaft Compact plastic housing Supplied with metal lockwasher and nut technical specification Resistance tolerance 20% Temperature coefficient 600ppm/C (max.) Linearity tolerance 2% independent Electrical rotation 340 3 Mechanical rotation 360 continuous Running torque 368m Nm Shaft ?6.35 L12.7 Mounting bush ?9.5 L9.5 Rotational life 10 million cycles Operating temperature -55C to +125C Dimensions body: ?22.22 L. 9.26 Shaft ? 6.35 L.22.22 (metal) Mounting bush ? 9.5 L. 8.77 *Meaurement Includes bush

Yes Spectrol ???? much used I use bourns 100K lin don't know I use gears on the pots > Hopefully once I sort out these pots I'll gain another 12months use from my

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> much loved, very well used but very fragile wheel :) > thanks in advance :) > Marc > Single Turn Precision Potentiometer 22mm 1W > Precision potentiometers are intended to be used as 3 terminal potential > dividers. Use as a 2 terminal variable resistor is not recommended. > Spectrol > Precision single turn bush potentiometer > Conductive plastic element > Stainless steel end slotted shaft > Compact plastic housing > Supplied with metal lockwasher and nut > technical specification > Resistance tolerance 20% > Temperature coefficient 600ppm/C (max.) > Linearity tolerance 2% independent > Electrical rotation 340 3 > Mechanical rotation 360 continuous > Running torque 368m Nm > Shaft ?6.35 L12.7 > Mounting bush ?9.5 L9.5 > Rotational life 10 million cycles > Operating temperature -55C to +125C > Dimensions body: ?22.22 L. 9.26 > Shaft ? 6.35 L.22.22 (metal) > Mounting bush ? 9.5 L. 8.77 > *Meaurement Includes bush

Hi Marc! I have a TM F1 too and use the Spectrol pot in the wheel for a month and am very satisfied with it (for the use in the pedals I can say nothing about it, I still have the original ones in ;)). The fitting of this pots is a bit tricky because a) you have to shorten the shaft alot and it's made of metal and b) the shaft is a little too thick (about 0.35 mm). If you have a high speed tool like a Dremel or something, then it's no problem. You can shorten the shaft with a diamond edged disc and make two slits into the fitting of the wheel so that you can widen it a bit. Send me an email if you need a more detailed solution ;). The pots are worth the efforts! Regards Crash