New Build

[antrock101]

Hi Guys,

I'm building a bike for learning purposes and was wondering if you could comment on the items I have selected and if I have gone wrong anywhere as i'm fairly new to this

I'm just putting together a gear list to work with what do people think (are these compatible)


Frame
http://www.ebay.co.uk/itm/330840034996?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648

crank/chain ring
http://www.ebay.co.uk/itm/SHIMANO-A...sure_cycling_bikeparts_SR&hash=item43b921dd88

bottom bracket
http://www.ebay.co.uk/itm/SHIMANO-S...cycling_bikeparts_SR&var=&hash=item43b5e480ee

chain guide
http://www.ebay.co.uk/itm/130947520196?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648

Derailleur
http://www.wiggle.co.uk/sram-x3-78-speed-rear-derailleur/

Gear Shifter
http://www.wiggle.co.uk/sram-mrx-comp-twist-shifter/

Wheel(Rear)
http://www.wiggle.co.uk/sram-406-race-mtb-rear-wheel/

Cassette
http://www.wiggle.co.uk/sram-pg730-7-speed-cassette

I will be removing 2 chain rings hence the guide and no front derailier

 

[RecordAceFromNew]

Hi Guys,

I'm building a bike for learning purposes and was wondering if you could comment on the items I have selected and if I have gone wrong anywhere as i'm fairly new to this

I'm just putting together a gear list to work with what do people think (are these compatible)


Frame
http://www.ebay.co.uk/itm/330840034996?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648

crank/chain ring
http://www.ebay.co.uk/itm/SHIMANO-A...sure_cycling_bikeparts_SR&hash=item43b921dd88

bottom bracket
http://www.ebay.co.uk/itm/SHIMANO-S...cycling_bikeparts_SR&var=&hash=item43b5e480ee

chain guide
http://www.ebay.co.uk/itm/130947520196?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648

Derailleur
http://www.wiggle.co.uk/sram-x3-78-speed-rear-derailleur/

Gear Shifter
http://www.wiggle.co.uk/sram-mrx-comp-twist-shifter/

Wheel(Rear)
http://www.wiggle.co.uk/sram-406-race-mtb-rear-wheel/

Cassette
http://www.wiggle.co.uk/sram-pg730-7-speed-cassette

I will be removing 2 chain rings hence the guide and no front derailier

There are a number of issues with the list.

I would probably pick another frame, and avoid a steel one since they will likely be heavier by 1 or even 2kg. Unless you really want to go retro most modern mtbs have 1 1/8" headtube for aheadset, which can become important for a decent choice of forks. Quite a few parts are frame dependent.

That x7 rear derailleur is incompatible with those mrx comp shifters - the rear mech is sram 1:1, while those shifters albeit made by sram are only compatible with Shimano rear mechs (under 10 speed).

I would pick wheels as a pair - its choice is as important as the frame, and they are probably the most expensive component.

I would avoid a 7 speed system and go for 8 or 9 speed since 7 is certainly no cheaper than 8. If you want to put a 7 speed cassette on a modern rear wheel you will need to buy an additional spacer.

Starting with a clear idea of what terrain/use/weight/etc. the bike is designed towards, I would put everything needed including price on a list, preferably a spreadsheet, and chew over it a lot (an essential part of learning) before commencement.

 

[biggs682]

expect to spend more than your budget

 

[Rickshaw Phil]

+1 for that shifter not being compatible. You need the SRAM 3.0 Comp to give the 1:1 pull ratio. (8 speed version here).

I'd also second going for 8 or 9 speed for the reason already given and because there is better choice of ratios in 8 and 9 speed.

 

[antrock101]

Chain Ring and crank
http://www.ebay.co.uk/itm/SHIMANO-A...R&hash=item43b921dd88&clk_rvr_id=503337734327

chain guide
http://www.ebay.co.uk/itm/130947520196?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648

derailer
http://www.wiggle.co.uk/shimano-sora-9-speed-rear-derailleur/

shifters: Cant find alot of info on the 1:1 / 1:2 ratios and if Shimano are only compatible with there own shifter

Cassette:
http://www.wiggle.co.uk/shimano-hg50-9-speed-cassette/

Wheels
http://www.wiggle.co.uk/sram-506-race-mtb-front-wheel/
http://www.wiggle.co.uk/sram-506-comp-mtb-rear-wheel/

Can't tell if they are cassette or freewheel, am I missing something

I haven't chosen a frame or bottom bracket can anyone recommend any sites ebay is throwing up some with no info on bb size ect. I would prefer one with the forks attached already

Thanks for your help guys i'm learning alot

 

[goody]

If I wanted to learn how to put bikes together I'd buy a secondhand one, strip it down then repair and replace as necessary to put it back together. Probably work out cheaper too. Or if you really have your heart set on a new build look for a quality frame from somewhere like Ribble, PlanetX, Merlin etc. There are bargains out there but there is also some truth in the sayings 'get what you pay for' and 'buy cheap buy twice'.

 

[antrock101]

My hearts set on a new build

 

[antrock101]

http://www.ebay.co.uk/itm/Truvative...sure_cycling_bikeparts_SR&hash=item27d4db06ce i just found these what do people think, I've never heard of the make

 

[antrock101]

I have also found this which I think I will be bidding on

http://www.ebay.co.uk/itm/Shimano-r...sure_cycling_bikeparts_SR&hash=item2a2ee9b350

 

[RecordAceFromNew]

http://www.ebay.co.uk/itm/Truvative...sure_cycling_bikeparts_SR&hash=item27d4db06ce i just found these what do people think, I've never heard of the make

I have also found this which I think I will be bidding on

http://www.ebay.co.uk/itm/Shimano-r...sure_cycling_bikeparts_SR&hash=item2a2ee9b350

That rear mech doesn't look like a typical mtb component (designed for large sprockets), nor do those shifters look like they come from an mtb - in any case the rear shifter is for 7 speed disadvantages of which were discussed earlier. The group probably comes from a low end hybrid. Without the frame you wouldn't really know whether the front mech fits (or suits, since you might need top or bottom pull), nor that bb which comes with the chainset, which incidentally is a downhill model, i.e. strong but heavy, and which happens to be in the exact opposite spectrum of those shifters/mechs...

I guess my comments demonstrate why while it is tempting to jump in and start buying/bidding, it is the wrong way to do it - which I believe I have indicated earlier, but seems not to have been noticed.

Ebay provides a non-ending supply (so why rush?) of pre-owned rubbish as well as treasures, but the latter are considerably rarer than the former, especially if the buyer hasn't done the homework, knows what he/she needs, what are available, and what the going rates are. If something looks too good to be true for the money, it usually is.

 

[antrock101]

Sorry if it seems like I am not researching enough, I'm really struggling to find any websites which break down what works with what and whats is best for a bike build hence why I keep posting things.