- New brake choices for a tubby gent.
I’m looking to upgrade my Sram DB5’s to something with a bit more stopping power. I’m 90+ kgs, the bikes 13kgs, and when loaded for bike packing I can be nudging 115kgs. On the flat the brakes are ok, but going down hills and they show their weaknesses, and I have bled them and are serviceable.
So far my shortlist has got Hope Tech3 X2’s and Sram Guide RSC’s on it, both have bite point ajdustment, which I’d really like as I do like a short lever throw. Anything else I should consider?
Thanks for your thoughts.Posted 11 months agojesSubscriber
110 kg running mostly x2 presently, ok for trails going DH but not full DH duties.
Struggled with m4’s when we first rode the Alps when I was 95 kg, managed to burn the rear rotor and boil the brake fluid. Which was quite scary. Rotor was still clicking loadly as it cooled on the way back up in the gondola.
Created a bit of a discussion from a German sharing the gondola, apparently no one was using Hope brakes in Europe at the time.
The following year went with V2’s (older version) 203 mm rotor, non vented which were a revelation, like hitting a brick wall but still great modulation.
X2’s are much better than the older M4’s.
Hope this helps 🙂Posted 11 months ago
Sounds odd that you can’t even lock up a wheel with the DB5’s – although they are pretty low down the Sram range.
I’ve had the mk1 Guide RS and never boiled anything even on a full uplift day at BPW. I’m only about 80kgs though and riding kit doesn’t add much weight. That was on 160mm rotors at both ends and sintered pads.
Now got the mk2 Sram Guide R with 200mm/180mm rotors and they feel more powerful than the RS I had. Was worried the lever wouldn’t feel as good without the swing link and bearing pivot that the higher models have got but hasn’t bothered me in the slightest whilst out riding. Only had them for a couple of rides and the worst I’ve been down so far is the Pedalhounds DH at Cwmcarn.
Another thought is why not try the Sram Guide RE? New out and meant for e-bikes – has the Guide R lever but the Code DH calliper – might be just the ticket with say 200mm/180mm centreline rotors.
If the levers fit alright around your current shifters then you hear good things about Shimano Zee / Saint.Posted 11 months ago
Thought it was odd hence the post before spending £250 on new brakes.
I’m running 180mm Shimano rotor on the front and 160mm on the rear, with Uber race matrix pads all round.
Reason for the RSC’s / Hope’s are they have bite adjust and reach adjust and I like my brakes with a short throw movement.Posted 11 months ago
Have you db5’s been bled recently? If they have and the pads / rotors are in good shape then maybe they’re just not man enough for you.
No experience of the Hope or the Shimano Zee. All the guide brakes have tool less reach adjust – just the bite point that requires the rsc. Is it worth trying to find someone local with brakes you could try out? I quite like my brakes to bite fairly early in the travel – all the Shimano SLX / XT I’ve tried seem to bite too close to the handlebar for my liking – although when they bite they come on really strong really quick.
I’d say the Sram brakes have better modulation so you can just drag them a bit at the start without hitting a brick wall of power – but pull a bit harder and they’re really powerful.
If you can get over the bike point adjust requirement the the Guide RE would probably great at your riding weight with the really big calliper. They got reviewed against the rsc and multiple other brakes in WMB recently and I think the RE won out.Posted 11 months ago
@joebristol, yes on all counts although I’m not happy with the front so that will be redone at the weekend.
I find most brakes engage to near the bars for me, hence looking at brakes that had bite adjust.
Will be popping up to the LBS after the womens XCO round on sunday. They usually have a selection of bikes set up on various brakes, its where I tried the RSC’s first timePosted 11 months agopdV6Member
celticdragon – Member
Thanks to all for your replied
pdV6, have you ever managed to lock up a wheel? I’ve only managed it once, on a loose surface, even on an unloaded bike. What pads are you using?
Yep – I tend not to as the modulation is great. But dead easy if you want to be deliberately ham-fisted about it.
I’m running DB5’s on SRAM Centreline 180/160 discs using Uberbike sintered pads.
As far as I am aware, the DB5’s are essentially Guides without any adjustments, so should still be “up there” performance-wise, despite being the cheap option.Posted 11 months ago
Guessing your pads or discs are dirty. I weigh similar to you and use Hope Mono Minis and Shimano XT/XTR and they stop perfectly well* as long as they are kept clean. It is very easy to contaminate them.
Best way to clean brakes that I’ve come across is using regular bike cleaner. Spray some all over the brake, ride it a few yards operating the brake, then rinse out.
* by perfectly well I mean those long steep mountain descents with a gate at the bottom, which is the real test imo.Posted 11 months ago
Reading a review this morning if you want a strong but relatively cheap brake (maybe you aren’t bothered at price when looking at Guide Rsc’s) the Magura mt5 is meant to be pretty much the strongest brake Mbuk have ever tested. The review did say the lever feel was a bit odd though.Posted 11 months agosteviedSubscriber
Pretty ‘in-depth’ review of most of the options here: http://enduro-mtb.com/en/best-mtb-disc-brake-can-buy/Posted 11 months agobinnersSubscriber
the Magura mt5 is meant to be pretty much the strongest brake Mbuk have ever tested.
I’m a big unit that takes some serious stopping. Like that big rock at the start of Raiders of the Lost Ark. 😀 I’ve got Magura MT5’s and they are indeed stupendously powerfu! A bit of messing around with the lever adjustments, and they feel reet. When I get back on the hardtail, my XT’s feel like V brakes in comparison!Posted 11 months ago
I’ll bet the brakes aren’t contaminated, want to bet the only bit of my bike I regularly clean other than the chain and first thing I checked.
Also thinking about it, the DB5 bits are 18 months – 2 years old (came off my old On One), with rotors and pads about 3 – 4 months old.
Current pads / rotors have done about 250 miles.Posted 11 months agoBoardinBobSubscriber
managed to burn the rear rotor and boil the brake fluid. Which was quite scary. Rotor was still clicking loadly as it cooled on the way back up in the gondola.
I melted rotors in the alps. They looked like quavers. Completely warped. Dread to think how hot it was.
Hope & Uberbike floating rotors have been flawless in the alps on both my Saints and GuidesPosted 11 months agojamesozMember
I’ve just replaced a set of Zees on my Aeris with Hope E4’s, quite surprised by the low weight.
The Zee’s felt similar but I boiled them in traffic to the point of failure and the bite point hasn’t felt consistent on long descents since.
If they were Hopes I would have replaced the seals and forgotten about it, lesson learned. Buy cheap buy twice.
I have a set of XT’s on another bike and they are consistent but consistently grabby.
I’m told Rotors with the Aluminium cooling doodads make the biggest difference.Posted 11 months ago
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