Bike parts › Front light mounts

Front lamp mounts

Your lamp under the computer, the right way up

A round bar under your computer mount takes your lamp's own bracket. It carries up to 165 g with the bracket: a B+M Ixon Core 2 or a Sigma Aura 100 or 120. That rules out a 240 g Ixon Space or Aura 170: K-Edge rates everything under a Max XL at 242 g, and B+M's manual forbids hanging the Space upside down. Keep those two on top of the bar on their own brackets. If a front rack took the lamp's spot, the lamp bridge spans its rails.

Side-view drawing under a bar and computer mount. Left: a lamp hung from an O-ring under the mount, tipped back with its beam aimed up. Right: our J-arm screwed under the mount and a short round bar at its foot, with the lamp standing on its own bracket. — Off the shelf: an O-ring hanger. One Ixon Space owner reports it slipping on rough ground.Ours: a J-arm under the mount, with a round stub for the lamp's own bracket.

€29 · lamp bridge €39

Tell us your bike →See the designs ↓

Pay after you approve the drawing · Doesn't fit? Refund or a better part · STEP file included · Datar P.S.A., Warsaw

The first ten bike orders ship free within the EU, and their photos go on this page if you agree.

Why it fails

Why a lamp on an O-ring tips

One Ixon Space owner reports that the O-ring hanger slips on rough ground, and a lamp that tips points its beam up. Hanging an StVZO lamp upside down is out: the cut-off flips and blinds oncoming traffic, and B+M's manual forbids it for the Ixon Space. On a round bar under the computer, the lamp's own bracket clamps on and the lamp stands the way its maker specifies. Your out-front's rating sets the weight: under a K-Edge that leaves 165 g, so a 240 g Ixon Space stays on top of the bar.

Designs

What we'd draw for your bike

A round bar under the computer, for the lamp's own bracket

A 40 mm aluminium stub hangs from the holes under your out-front, and your lamp's own bar bracket clamps onto it, the right way up.

Render from front-left, just above: a black computer on a grey aluminium out-front, and under it the charcoal J-arm, MAX 165 g · 1.5 Nm on its side. The arm runs down beside a black lamp to a short silver aluminium stub under the lamp; the lamp's own dark bar band clamps round the stub and holds it upright, reflector forward. A grey cord runs from the bar to the lamp's rear. — Example design · render

Fits: Aluminium out-fronts with two holes underneath: K-Edge Max XL (2× M4 at 25.4 mm), Framesandgear and similar. Lamps whose bracket clamps a 22.2 mm bar, like B+M's 496HPB (21–32 mm). This example: an Edge 840 and a B+M Ixon Core 2 (117 × 37 × 44 mm, 125 g)
Bolts to: Two countersunk screws into the holes under your out-front, in place of its GoPro adapter
Mass: 30 g printed; 77 g with the stub and bolts, CAD estimate
Material: PA-CF plate and J-arm (10 × 16 mm section), 1 mm TPU 95A liner in the cradle, bought 6061 aluminium stub; black ASA on request
Hardware: 2× M4×12 ISO 10642 A2-70 countersunk with a nylon patch into the out-front; one M6×60 ISO 4762 10.9 bolt through the stub with two DIN 440 R washers, a Ø10/6.4 steel sleeve and an ISO 10511 nyloc nut; a Ø3 × 6 stainless pin pressed in at 45° under the cradle, so the stub can't turn
Torque: 1.5 Nm on the M4 screws, on the label; the M6 comes set to 6 Nm; the lamp's bracket to its maker's torque
Max device: 165 g, lamp and bracket together, under a K-Edge Max XL: K-Edge rates its underside at 242 g in total; our part with the stub and bolts takes 77 g, which leaves 165 g. Under another out-front, its maker's rating sets the number on the label
Tether: 300 mm cord from the bar to the lamp, crimped, never to our part
Not for: Plastic out-fronts; lamps over the label, like the Ixon Space or the Aura 170 at 240 g; a clamp on the handlebar itself
Price: €29, fixed before we start
File: Download example STEP

Exploded render along the stub axis under the out-front: the plate and J-arm, the TPU half-liner, the aluminium stub, the M6 bolt, two washers, the steel sleeve, the nyloc nut, the locating pin pulled out of the cradle's front-bottom, two countersunk M4 screws and the tether cord with its crimped eye, numbered as in the parts list. — Example design · exploded render

#	Part	Qty	Spec
1	Plate and J-arm	1	PA-CF
2	Cradle liner	1	TPU 95A, 1 mm
3	Stub	1	bought 6061 tube Ø22.2 × 2 × 40 mm
4	Bolt	1	M6×60 ISO 4762 10.9, black oxide
5	Washer	2	DIN 440 R M6, Ø22 × 2, A2
6	Sleeve	1	steel, Ø10/6.4 × 8.1 mm
7	Nut	1	M6 ISO 10511 nyloc, class 10
8	Locating pin	1	Ø3 × 6 ISO 8734, stainless
9	Screw	2	M4×12 ISO 10642 A2-70, nylon patch
10	Tether	1	Ø2 mm cord, bar to lamp, 300 mm

Drawing · mm · red: to confirm on your bike · tap to open full size

Lamp bridge across two front-rack rails

Two stainless clamps on the rack rails carry a short beam, so the lamp sits ahead of the bag and the rack's own mounts stay untouched.

Render from front-left, just below the rails: a grey box bag on the platform and, under the two top rails, a charcoal beam, MAX 250 g · 2 Nm on its side, held by two rubber-lined stainless P-clamps. An aluminium GoPro 3-prong under the beam carries a black round lamp ahead of the bag, reflector forward, with a cord from the lamp to the left rail. — Example design · render

Fits: Metal front racks with two parallel top rails, Ø8–12 mm and 70–110 mm apart, measured on your rack (this example: Ø10 at 90 mm); lamps made to hang from a GoPro mount
Bolts to: Two bought rubber-lined stainless P-clamps round the rails, on M5 bolts into brass. Nothing goes on the rack's struts, eyelets or mounting bolts
Mass: 29 g, CAD estimate
Material: PA-CF beam, 18 × 12 mm with a rounded underside, saddled on the clamp loops so it can't swing round the rails; black ASA on request
Hardware: 2 rubber-lined stainless P-clamps (13 mm, 12 mm band) on 2× M5×10 ISO 7380 A2-70 into M5 brass inserts; a bought aluminium GoPro 3-prong on 2× M4×12 ISO 10642 A2-70 into M4 brass inserts
Torque: 2 Nm on all four bolts, on the label
Max device: 250 g, lamp, bracket and adapter together
Tether: 250 mm cord from the lamp to a rack rail, short enough that the lamp can't reach the spokes
Not for: Plastic racks; the rack's struts, eyelets and mounting bolts; StVZO lamps that must stay upright (use the stub)
Price: €39, fixed before we start

Exploded render down from the rack's top rails: the two P-clamps stay on the rails, with two M5 button-head bolts above them, two M5 brass inserts, the beam, two M4 brass inserts below it, the aluminium GoPro 3-prong, two countersunk M4 screws and the tether cord round the left rail, numbered as in the parts list. — Example design · exploded render

#	Part	Qty	Spec
1	Beam	1	PA-CF
2	P-clamp	2	rubber-lined stainless, 13 mm × 12 mm, DIN 3016 W4
3	Heat-set insert	2	M5, brass
4	Bolt	2	M5×10 ISO 7380 A2-70, nylon patch
5	GoPro mount	1	bought aluminium 3-prong, 2-hole base
6	Heat-set insert	2	M4, brass
7	Screw	2	M4×12 ISO 10642 A2-70, nylon patch
8	Tether	1	Ø2 mm cord, lamp to rack rail, 250 mm

Top-view drawing: the rails 90 mm apart (red, to measure), the 112 mm beam under them, the P-clamps on the rails, the lamp and GoPro dashed below and the lamp front 45 mm ahead of the bag; section B–B along the beam with the rail diameter in red, the M5 bolts into brass and the lamp top 49 mm below the bag. — Drawing · mm · red: to confirm on your bike · tap to open full size

Lamp tab under the faceplate bolts

A tab under two faceplate bolts with an M6 lamp foot, for the stem Cube never made a light plate for.

Render from front-left, above: a grey four-bolt stem faceplate on a bar and, under its lower two bolts, a charcoal tab, MAX 150 g · 5 Nm on its strap, with a leg down to an M6 boss. A compact black e-bike lamp hangs from the boss on its tongue under a stainless M6 head, housing upright, reflector forward, with a cord from the bar round the tongue. — Example design · render

Fits: Four-bolt faceplates: Cube CPS-A on the Kathmandu Hybrid One11, R&M Satori and similar stems; bolt centres measured on your stem (this example 34 × 48 mm). E-bike lamps with an M6 foot whose maker allows hanging them foot-up with the housing upright (this example: Supernova M99 Mini Pro class, 120 g)
Bolts to: The lower two of the four faceplate bolts, through full-height steel sleeves, so the bar clamp stays metal to metal; the upper two stay as they are. We use your stem maker's bolt grade in the right length, with its torque and tightening order
Mass: 14 g, CAD estimate
Material: PA-CF tab (8.9 mm strap, leg to an M6 boss); black ASA on request
Hardware: 2× steel sleeves Ø8/5.2 × 9 mm; 2× M5×25 ISO 4762 10.9 in this example (your stem maker's grade, 9 mm longer than the original bolt, same thread engagement); an M6 brass heat-set insert; an M6×12 ISO 7380 A2-70 lamp screw with a nylon patch, or a bought aluminium GoPro mount
Torque: Your stem maker's faceplate torque and tightening order, on the label (this example 5 Nm); never A2 bolts in the faceplate
Max device: 150 g, lamp and bracket together
Tether: 250 mm cord from the lamp round the bar, never to the tab
Not for: One- and two-bolt faceplates; one-piece cockpits, which use their own threads (cockpit combo); lamps over 150 g; lamps whose maker allows only standing on the foot; any change to the wiring
Price: €29, fixed before we start

Exploded render: the tab stays under the faceplate, with two full-height steel sleeves and two black M5 bolts pulled forward out of the strap, the brass M6 insert and the M6 button-head lamp screw along the boss axis, and the tether cord round the bar with its eye, numbered as in the parts list. — Example design · exploded render

#	Part	Qty	Spec
1	Tab	1	PA-CF
2	Sleeve	2	steel, Ø8/5.2 × 9 mm
3	Faceplate bolt	2	M5×25 ISO 4762 10.9, black oxide (or the stem maker's grade)
4	Heat-set insert	1	M6, brass
5	Lamp screw	1	M6×12 ISO 7380 A2-70, nylon patch
6	Tether	1	Ø2 mm cord, bar to lamp, 250 mm

Front-view drawing of the tab under the faceplate: bolt centres 34 × 48 mm in red to confirm, the 49 mm strap and the M6 boss 46 mm below the bar axis; section through a lower bolt with the 9 mm sleeve beside the original M5×16 bolt in red and the 8 mm thread engagement kept. — Drawing · mm · red: to confirm on your bike · tap to open full size

Also on request: an arm on a rack's threaded loop (M5 or M6) with a saddle shaped to the nearest tube, so it can't turn. That's the one for an Arkel front rack on a Kona Rove HD.

Fits

Bikes and devices we draw for

Lamps: On the stub, with their bar bracket: B+M Ixon Core 2; Sigma Aura 100, 120; Cateye AMPP 900; Cateye GVolt 70.1/80.1 hanging below their brackets, as Cateye specifies; Lupine SL Mono, SL Grano; Lezyne Classic Drive XL 700+, Power StVZO HB 500 · On a GoPro mount, on the lamp bridge: Magicshine Evo 1700, Hori 1300 · With an M6 foot, on the faceplate tab: Supernova M99 Mini Pro-25, Litemove AE-130, B+M IQ-X · Lamp and bracket must stay within each design's limit; the B+M Ixon Space and Sigma Aura 170 (240 g each) are over it under a K-Edge
Bikes and cockpits: Canyon CF 8 gravel (CP0045), under a Framesandgear out-front · Cube Kathmandu Hybrid One11 (CPS-A stem) · R&M Charger 4 (Satori stem) · Kona Rove HD with an Arkel front rack · Giant Trance 2 2019 (35 mm bar), under a 35 mm K-Edge
Mounts and racks: K-Edge Max XL Combo, 31.8 and 35 mm · Framesandgear aero mounts · KOM CM06 · Arkel front rack · Metal platform racks with two top rails

Not listed? Send a photo.

Prices

Our price next to what's on sale

Option	Price	Where it stops
B+M Ixon Space hanger (496APB)	€14.95	Holds the lamp on an O-ring
B+M 496HPB bar bracket	€10.99	On top of a 21–32 mm bar only
K-Edge Max XL Combo	€62.99–67.99	Round bars; the lamp hangs on one GoPro hinge
Framesandgear aero mount	€85	Only the cockpits on its list
Garmin UT800 adapter	€6.99	Garmin out-fronts only
Cube ACID FPILink adapter	€6.95	Needs an FPILink faceplate; Cube makes none for the CPS-A stem
Minoura SGS-400-OS	€15.95	Clamps a round bar
Ours: stub or faceplate tab	€29	An aluminium out-front or a four-bolt faceplate; we confirm your bike, lamp and mount before printing, and you pay after approval
Ours: lamp bridge	€39	Metal racks with two top rails, 250 g

Taxes included. Delivery is quoted with the part (delivery).

If it doesn't fit the bike and device we agreed on, you choose: a full refund or an improved part. If a measurement you gave us was wrong, we fix the design and the new part costs production only. This doesn't limit your statutory rights.

Riders' posts

What riders posted

From forums, not from customers

September 2026 A Magicshine lamp under a combo mount that came with it, Garmin on top. The mount snapped on a pothole in winter and the lamp was gone. The rider then paid over 250 zł for a sturdier one.
October 2026 B+M Ixon Space, about €200, on a gravel bike. B+M's hanger holds it on an O-ring, and on rough ground it slips and gets in the way of the brightness control. A Sigma bracket didn't fit. The rider would buy a screw-on mount for under the bar at once.
October 2026 A commuter with a front platform rack. No GoPro light mount the rider found was wide enough to span the two rails. No 3D printer at home, and a bolt-and-spacer fix didn't appeal.
October 2026 Kona Rove HD with an Arkel front rack. The rack took the light's spot, and the only place left is a threaded loop on the rack. In the same thread, an Olight twist-lock mount broke in icy rain.
October 2026 Cube Kathmandu Hybrid One11 e-bike with a CPS-A stem. Cube makes FPILink light faceplates for its Race, SLX, Stereo and CPS-E stems, and none for this one. Nobody in the thread knew the bolt spacing.

19 posts, March to October 2026, in German, English and Polish.

Limits

We don't make these: what to buy

We bolt to metal, to accessory threads, or where your radar's band sits today. We never make or modify brakes or steering parts, or anything that holds a rack or a child seat.

A printed clamp on a carbon or aero bar → K-Edge Max XL Combo, €67.99, Framesandgear, €85, or your bike maker's mount, then our stub or GoPro plate under itWe never print a clamp for a carbon bar.
A clamp on a 35 mm bar → K-Edge Max XL Combo 35 mm, €62.99, with our stub under it, or B+M 470LHA35PB, €17.99, for a lamp with a screw footEverything on the bar hangs from that clamp, so we leave it to metal ones.
A bracket on the fork crown → PDW's fork crown mount, $15, for PDW lampsA part that drops off the crown goes into the front wheel.
A new faceplate or stem with a light mount → Your stem maker's: Cube's FPILink faceplate with the ACID adapter, €6.95, on the stems Cube makes it forThe faceplate holds your bar, so we don't make one.
Rewiring an e-bike lamp → The Julet extension that matches your lamp's plug, or a bike shopWe don't touch the wiring.

Garmin, Varia, Wahoo, Hammerhead and other names are used only to say what a part fits. We're not affiliated with them.

Start here

Tell us your bike

Start with model names; we mark any measurement we still need in red. We reply within one working day, and if a shop sells a part that fits, we send you the link.

Tap what you have

Lamp, computer mount or rack, bike

Photos (optional, up to 3). Under the computer mount with a ruler, the lamp's bracket, and a side view down to the tyre or bag.Add photosor drop them here

What to send (optional)

Lamp model and its weight with the bracket
Bike and year
Stem, cockpit or front rack
Computer mount you have now, or "none"
Bar diameter at the clamp
Lamp bridge: rail diameter and spacing
Faceplate tab: faceplate bolt centres

What's wrong, and what should the part do?Or pick one:

Email or phone

The first ten bike orders ship free within the EU, and their photos go on this page if you agree.

Request sent.

We reply within one working day. If a shop sells a part that fits, we'll send you the link.

Send another request

Controller: Datar P.S.A., Warsaw. We use your request and photos to reply and quote and, if you order, to make and deliver your part (art. 6(1)(b) GDPR). They're stored by Cloudflare in the EU and reach our Google mailbox; we delete them 12 months after our last contact, or sooner on request. You can ask for access, correction or deletion, and complain to a data protection authority. Privacy policy · Terms.

FAQ

Questions before you order

Can you hang my lamp upside down under the bar?

We don't hang lamps with an StVZO cut-off upside down. Turned over, the bright part of the beam points up into oncoming drivers' eyes, and B+M's manual forbids it for the Ixon Space, adding that water can get in. The stub keeps the lamp in the position its maker specifies, standing on its own bracket, so the cut-off still points down. Lamps built to hang, with the beam set for it, can go on the GoPro mount of the lamp bridge.

How heavy can the lamp be?

We add up the lamp, its bracket and everything between it and the bike, and the lowest rating in that chain sets the limit. K-Edge rates everything under a Max XL at 242 g. Our arm, stub and bolts take 77 g of that, which leaves the 165 g on the label. B+M lists the Ixon Core 2 at 125 g and Sigma the Aura 120 at 148 g with its bracket, so both fit. A 240 g Ixon Space or Aura 170 is over it and rides on top of the bar. The lamp bridge takes 250 g and the faceplate tab 150 g. Before a design ships, its first print holds 50 N at the lamp for a minute and rides 30 km of cobbles, then we check every bolt is still at its torque. As of October 2026 these designs are drawn and rendered; photos of the first test prints will go on this page.

My out-front is Garmin's plastic one.

We bolt the stub only into aluminium out-fronts. Swap the plastic mount for one like the K-Edge Max XL Combo, €67.99, and the stub goes underneath. Our GoPro plate, for lamps on a GoPro mount, also goes under a metal mount. Send us the model you have, and the drawing shows which way works and what weight the label carries.

Does the lamp bridge touch the rack's mounts?

It clamps only the two top rails, with bought rubber-lined stainless P-clamps on M5 bolts, and stays off the struts, eyelets and the bolts that hold the rack to the bike. Metal racks only. A cord runs from the lamp to a rack tube, cut short so a loose lamp can't reach the spokes.

Will my e-bike lamp with a cable fit?

If it has an M6 foot, like Supernova's and Litemove's e-bike lamps, it bolts to the faceplate tab's brass M6 insert. From your photo of the cable's run, we draw a path so it reaches the lamp without a tight bend. We don't cut, extend or re-plug wiring; for that, get the Julet extension that matches your plug or ask a bike shop. The tab sits under two faceplate bolts on steel sleeves, with your stem maker's bolt grade, length, torque and tightening order.

Other spots

The other five spots

01Radar or rear light under the saddlefrom €29 02Computer on an integrated cockpit€59 04One bottle too fewfrom €29 05Fork guards and rack partsfrom €19 06Small parts nobody sellsfrom €19

All six spots →