ok, put my bb bracket in today and find out that it isn't wide enough! The crank arm on the non drive side hits the chain stay. The bb is a Un52 in the XL 118 version. It is being put into a 2003 speciallized big hit pro. Any sujestions as to what is wrong?! Do I need to get a new set of cranks? New bb? Anyone with any idea?!
BB not big enough!?
- Thread starter Turley
- Start date
what cranks are you using with it?
The specs say it is a 73x118 bb shell.
Product search
BigHit Pro
THE FEATURES
This frame is your ticket to fly with 6.8 or 8.1 inches of plush FSR travel. TransForm Monocoque keeps things beefy and stiff while the ISCG compatible bottom bracket tabs provides slip-free chain guide mounting and the asymmetrical rear triangle optimized chainline. 4-position adj. travel/head angle DH link, 3-position spring rate progression adj., full sealed cartridge bearing pivots.
Roller tires in a medium compound offer killer traction with decreased rolling resistance.
TruVativ Holzfeller 7050 crank is beefy and sports a full compliment of three rings. (Yup, 8.1" and full gears. No shuttle required.) Extra bash guard included with things get technical.
Fox Vanilla RC rear shock offers compression and rebound adjustment as does the Marzocchi Super T dual crown fork. (170mm travel)
XTR rear derailleur provides extra incentive to not stack on the drive side.
Hayes full magnesium brakes provide heavy weight performance without the heavy weight.
Geometry (bike metrics)
Technical Specifications
FRAME Specialized FSR technology, A1 Premium Aluminum TransForm Monocoque frame, ISCG compatible bottom bracket tabs, asymmetrical 6mm offset rear triangle, 4-position adj. travel/head angle DH link, 3-position spring rate progression adj., full sealed cartridge bearing pivots, replaceable derailleur hanger, 8.1/6.8" travel
REAR SHOCK Fox Vanilla RC, external rebound and compression adj., coil spring, stainless steel pin, 8.75" x 2.75"
FORK Marzocchi Super T, 170mm travel, dual crown, external rebound adj., QR20+ Dropouts, integrated stem
HEADSET Tank MX, 1 1/8" threadless, Cr-Mo cups, loose ball bearings
STEM Marzocchi Integrated stem, 55 to 67mm adj. crown clamp, 0 degree rise
HANDLEBARS Specialized BigHit rise bar, 6066 alloy,31.8mm clamp, 6 degree upsweep, 9 degree backsweep, 670mm
TAPE / GRIPS Specialized MTB grip, black, double density Kraton
FRONT BRAKE Hayes HFX Magnesium full hydraulic disc, 8" rotor
REAR BRAKE Hayes HFX Magnesium full hydraulic disc, 6" rotor
BRAKE LEVERS Hayes HFX Magnesium full hydraulic disc
FRONT DERAILLEUR Shimano M-570 LX, E-type, bottom pull
REAR DERAILLEUR Shimano M-952 XTR, long cage, standard spring
SHIFT LEVERS Shimano M-570 LX, 9 speed
CASSETTE Shimano HG-50 LX, 11/34
CHAIN Shimano HG-73
CRANKSET Truvativ Holzfeller 7050, ISIS spline, 7050 alloy, 170mm
CHAINRINGS 44Ax32Sx22S, 4 bolt, compact 104/64mm pattern, 5mm thick 7050 alloy bash/rock guard extra
BOTTOM BRACKET Truvativ ISIS DH, 73mm shell width, 118mm spindle length, E-Type
PEDALS Alloy platform, 3mm pressed pins, 9/16" Cr-Mo axle
RIMS Sun Single Track, 26" front, 24" rear, black, welded seam, eyelets
FRONT HUB Specialized Stout disc, 36 hole, cartridge bearings, 20mm alloy thru-axle
REAR HUB Shimano M-525 disc, 36 hole, sealed loose ball bearings, alloy Q/R
SPOKES DT Swiss 2.0mm stainless, black, brass nipples, 260/258mm front, 231/233mm rear
FRONT TIRE Specialized Roller 26 x 2.6" medium compound, Steel bead, Cap Ply
REAR TIRE Specialized Roller 24 x 2.6" medium compound, Steel bead, Cap Ply
TUBES Specialized 24/26" x 2.4/2.75", schraeder valve
SADDLE Specialized BigHit, 8mm Cr-Mo rails, X-Brace
SEAT POST Alloy, black, 30.9 x 300mm
SEAT BINDER Alloy collar with Q/R, 34.9mm clamp I.D., black
NOTES Chain stay/seat stay protector, derailleur protector, reflectors, owners manual
Specifications subject to change without notice.
The specs say it is a 73x118 bb shell.
Product search
BigHit Pro
THE FEATURES
This frame is your ticket to fly with 6.8 or 8.1 inches of plush FSR travel. TransForm Monocoque keeps things beefy and stiff while the ISCG compatible bottom bracket tabs provides slip-free chain guide mounting and the asymmetrical rear triangle optimized chainline. 4-position adj. travel/head angle DH link, 3-position spring rate progression adj., full sealed cartridge bearing pivots.
Roller tires in a medium compound offer killer traction with decreased rolling resistance.
TruVativ Holzfeller 7050 crank is beefy and sports a full compliment of three rings. (Yup, 8.1" and full gears. No shuttle required.) Extra bash guard included with things get technical.
Fox Vanilla RC rear shock offers compression and rebound adjustment as does the Marzocchi Super T dual crown fork. (170mm travel)
XTR rear derailleur provides extra incentive to not stack on the drive side.
Hayes full magnesium brakes provide heavy weight performance without the heavy weight.
Geometry (bike metrics)
Technical Specifications
FRAME Specialized FSR technology, A1 Premium Aluminum TransForm Monocoque frame, ISCG compatible bottom bracket tabs, asymmetrical 6mm offset rear triangle, 4-position adj. travel/head angle DH link, 3-position spring rate progression adj., full sealed cartridge bearing pivots, replaceable derailleur hanger, 8.1/6.8" travel
REAR SHOCK Fox Vanilla RC, external rebound and compression adj., coil spring, stainless steel pin, 8.75" x 2.75"
FORK Marzocchi Super T, 170mm travel, dual crown, external rebound adj., QR20+ Dropouts, integrated stem
HEADSET Tank MX, 1 1/8" threadless, Cr-Mo cups, loose ball bearings
STEM Marzocchi Integrated stem, 55 to 67mm adj. crown clamp, 0 degree rise
HANDLEBARS Specialized BigHit rise bar, 6066 alloy,31.8mm clamp, 6 degree upsweep, 9 degree backsweep, 670mm
TAPE / GRIPS Specialized MTB grip, black, double density Kraton
FRONT BRAKE Hayes HFX Magnesium full hydraulic disc, 8" rotor
REAR BRAKE Hayes HFX Magnesium full hydraulic disc, 6" rotor
BRAKE LEVERS Hayes HFX Magnesium full hydraulic disc
FRONT DERAILLEUR Shimano M-570 LX, E-type, bottom pull
REAR DERAILLEUR Shimano M-952 XTR, long cage, standard spring
SHIFT LEVERS Shimano M-570 LX, 9 speed
CASSETTE Shimano HG-50 LX, 11/34
CHAIN Shimano HG-73
CRANKSET Truvativ Holzfeller 7050, ISIS spline, 7050 alloy, 170mm
CHAINRINGS 44Ax32Sx22S, 4 bolt, compact 104/64mm pattern, 5mm thick 7050 alloy bash/rock guard extra
BOTTOM BRACKET Truvativ ISIS DH, 73mm shell width, 118mm spindle length, E-Type
PEDALS Alloy platform, 3mm pressed pins, 9/16" Cr-Mo axle
RIMS Sun Single Track, 26" front, 24" rear, black, welded seam, eyelets
FRONT HUB Specialized Stout disc, 36 hole, cartridge bearings, 20mm alloy thru-axle
REAR HUB Shimano M-525 disc, 36 hole, sealed loose ball bearings, alloy Q/R
SPOKES DT Swiss 2.0mm stainless, black, brass nipples, 260/258mm front, 231/233mm rear
FRONT TIRE Specialized Roller 26 x 2.6" medium compound, Steel bead, Cap Ply
REAR TIRE Specialized Roller 24 x 2.6" medium compound, Steel bead, Cap Ply
TUBES Specialized 24/26" x 2.4/2.75", schraeder valve
SADDLE Specialized BigHit, 8mm Cr-Mo rails, X-Brace
SEAT POST Alloy, black, 30.9 x 300mm
SEAT BINDER Alloy collar with Q/R, 34.9mm clamp I.D., black
NOTES Chain stay/seat stay protector, derailleur protector, reflectors, owners manual
Specifications subject to change without notice.